core: add missing introspect.nu + prune dead imports (fixup ADR-026 2b)
The slice-2b commit (6f0de7a) repointed cli/component.nu and cli/components_cluster.nu
to domain/cluster/introspect.nu but did not stage the file itself — HEAD imported a
module absent from the repo. Add it.
Also prune the verbs file: components_cluster.nu inherited the full preamble from the
slice-1 copy; now that it holds only the 5 `main cluster *` verbs, 10 unused `use`
lines (orchestrator, run_taskserv, templates, service_check, context_assembler, state,
user/config, ncl-eval, mod.nu *) and 2 over-broad name lists are dead. Trimmed to the
4 imports the verbs actually use.
Verified: module-load of all cli/domain cluster modules; cluster --help + component
list run.
This commit is contained in:
Jesús Pérez
parent
6f0de7ae89
commit
20dbd10102
GPG key ID:
9F243E355E0BC939
2 changed files with 525 additions and 16 deletions
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@ -1,22 +1,9 @@
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use domain/workspace/mod.nu *
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use platform/user/config.nu [get-active-workspace-details list-workspaces]
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use tools/nickel/process.nu [ncl-eval, ncl-eval-soft, default-ncl-paths, comp-ncl-export]
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use domain/workspace/state.nu [state-read state-write state-node-get state-node-set state-node-start state-node-finish state-node-delete state-node-reset log-trim]
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use platform/clients/orchestrator.nu [orch-url, orch-submit-component, orch-wait-task, orch-health]
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use orchestration/taskservs/run.nu [run_taskserv]
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use platform/config/accessor.nu [get-taskservs-path]
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use domain/utils/templates.nu [on_template_path run_from_template]
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use primitives/io/service_check.nu [health-gate]
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use primitives/io/logging.nu [is-debug-enabled is-debug-level]
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use platform/integrations/context_assembler.nu [build-cabling-credentials-env]
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# Cluster-observability slice extracted from components.nu (ADR-026 layer hygiene).
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# `main cluster *` verbs. Introspection helpers live in domain/cluster/introspect.nu;
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# access resolution in domain/cluster/access.nu; ws resolution in domain/workspace/resolve.nu.
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use cli/components.nu [cli-err]
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use domain/cluster/introspect.nu [cluster-top-legend comp-load-server-info comp-server-capacity comp-ssh-k8s-data fmt-gib k8s-quantity-bytes node-operator-labels]
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use domain/cluster/access.nu [comp-kubectl-access comp-kubectl-ssh]
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use platform/clients/ssh.nu [comp-server-ssh-info comp-ssh-run]
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use domain/workspace/resolve.nu [comp-ws-path comp-ws-infra comp-state-server comp-resolve-ws-path]
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use domain/workspace/resolve.nu [comp-ws-path comp-ws-infra]
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# Live per-node resource usage via `kubectl top`, enriched with the declared
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# Hetzner server type and its nominal capacity. provisioning never runs kubectl
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522
nulib/domain/cluster/introspect.nu
Normal file
522
nulib/domain/cluster/introspect.nu
Normal file
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@ -0,0 +1,522 @@
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# Cluster introspection helpers (capacity, k8s summaries, live-check) — extracted
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# from cli/components_cluster.nu (ADR-026 slice 2b). Pure domain logic; all imports downward.
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use tools/nickel/process.nu [comp-ncl-export]
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use domain/cluster/access.nu [comp-kubectl-access comp-kubectl-ssh]
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use platform/clients/ssh.nu [comp-server-ssh-info comp-ssh-run]
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use primitives/io/logging.nu [is-debug-level]
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# Structured compute capacity for a Hetzner server type code: parsed CPU and RAM
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# for capacity math (cluster top, the placement simulator) plus a human label.
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# Unknown codes yield zero capacity and the code itself as label, so callers can
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# degrade gracefully instead of mis-reporting headroom.
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export def comp-server-capacity [type_code: string]: nothing -> record {
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let tbl = {
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cax11: { cpu: 2, mem_gb: 4, arch: "ARM" }, cax21: { cpu: 4, mem_gb: 8, arch: "ARM" },
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cax31: { cpu: 8, mem_gb: 16, arch: "ARM" }, cax41: { cpu: 16, mem_gb: 32, arch: "ARM" },
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cpx11: { cpu: 2, mem_gb: 2, arch: "AMD" }, cpx21: { cpu: 3, mem_gb: 4, arch: "AMD" },
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cpx31: { cpu: 4, mem_gb: 8, arch: "AMD" }, cpx41: { cpu: 8, mem_gb: 16, arch: "AMD" },
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cpx51: { cpu: 16, mem_gb: 32, arch: "AMD" },
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cx22: { cpu: 2, mem_gb: 4, arch: "Intel" }, cx32: { cpu: 4, mem_gb: 8, arch: "Intel" },
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cx42: { cpu: 8, mem_gb: 16, arch: "Intel" }, cx52: { cpu: 16, mem_gb: 32, arch: "Intel" },
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}
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let spec = ($tbl | get -o $type_code)
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if ($spec == null) {
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{ type: $type_code, cpu: 0, cpu_millis: 0, mem_gb: 0, mem_bytes: 0, arch: "", label: $type_code }
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} else {
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{
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type: $type_code,
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cpu: $spec.cpu,
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cpu_millis: ($spec.cpu * 1000),
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mem_gb: $spec.mem_gb,
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mem_bytes: ($spec.mem_gb * 1024 * 1024 * 1024),
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arch: $spec.arch,
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label: $"($spec.cpu)CPU ($spec.mem_gb)GB ($spec.arch)",
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}
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}
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}
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# Translate Hetzner server type codes to a human-readable CPU/RAM/arch label.
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def hetzner-type-label [type_code: string]: nothing -> string {
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(comp-server-capacity $type_code).label
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}
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def status-dot [status: string]: nothing -> string {
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match $status {
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"running" => "●"
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"off" => "○"
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"starting" => "◐"
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_ => "○"
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}
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}
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# Load server runtime + declared metadata for all servers in a workspace infra.
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# Cache mode: .servers-state.json (status/public_ip/location) + settings.ncl (type/private_ip).
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# Live mode: hcloud API directly.
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# Returns record keyed by hostname.
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export def comp-load-server-info [
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ws_root: string
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infra: string
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--live
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]: nothing -> record {
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let state_path = ($ws_root | path join "infra" $infra ".servers-state.json")
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let cache = if ($state_path | path exists) { open $state_path } else { {} }
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let declared = do -i {
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let raw = (comp-ncl-export $ws_root $"infra/($infra)/settings.ncl")
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$raw | get -o servers | default []
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| reduce --fold {} {|srv, acc|
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$acc | insert $srv.hostname {
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type: ($srv.server_type? | default ""),
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private_ip: ($srv | get -o networking.private_ip | default ""),
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provider: ($srv.provider? | default "hetzner"),
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}
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}
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} | default {}
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if $live {
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let res = (do { ^hcloud server list -o json } | complete)
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if $res.exit_code != 0 { return $declared }
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($res.stdout | from json)
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| reduce --fold {} {|h, acc|
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let d = ($declared | get -o $h.name | default {})
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$acc | insert $h.name {
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status: $h.status,
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type: ($h | get -o server_type.name | default ($d.type? | default "")),
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location: ($h | get -o datacenter.location.name | default ""),
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public_ip: ($h | get -o public_net.ipv4.ip | default ""),
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private_ip: ($d.private_ip? | default ""),
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provider: ($d.provider? | default "hetzner"),
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}
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}
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} else {
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$cache | items {|hostname entry|
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let d = ($declared | get -o $hostname | default {})
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{
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key: $hostname,
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value: {
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status: ($entry.status? | default ""),
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type: ($d.type? | default ""),
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location: ($entry.location? | default ""),
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public_ip: ($entry.public_ip? | default ""),
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private_ip: ($d.private_ip? | default ""),
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provider: ($d.provider? | default "hetzner"),
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},
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}
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} | reduce --fold {} {|it, acc| $acc | insert $it.key $it.value}
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}
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}
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# One-line server info badge for the TASKSERV section header.
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export def comp-server-badge [info: record]: nothing -> string {
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if ($info | is-empty) { return "" }
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let dot = (status-dot ($info.status? | default ""))
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let status = ($info.status? | default "")
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let type_l = if ($info.type? | default "" | is-not-empty) {
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hetzner-type-label $info.type
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} else { "" }
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let loc = ($info.location? | default "")
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let pub = ($info.public_ip? | default "")
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let priv = ($info.private_ip? | default "")
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let ip_str = if ($pub | is-not-empty) and ($priv | is-not-empty) {
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$"($pub) / ($priv)"
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} else if ($pub | is-not-empty) { $pub } else { $priv }
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let parts = [$"($dot) ($status)" $type_l $loc $ip_str] | where { $in | is-not-empty }
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if ($parts | is-empty) { "" } else { $parts | str join " " }
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}
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def cluster-cache-path [ws_root: string, infra: string]: nothing -> string {
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$ws_root | path join "infra" $infra ".cluster-state.json"
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}
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# Read the declared k0s version from settings.ncl (settings.k0s.version).
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export def comp-settings-k0s-version [ws_root: string, infra: string]: nothing -> string {
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let raw = (comp-ncl-export $ws_root $"infra/($infra)/settings.ncl")
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$raw | get -o settings | default {} | get -o k0s | default {} | get -o version | default ""
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}
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# Fetch cluster summary counts via the declared remote kubectl (single SSH call).
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# Returns the same shape as comp-cluster-summary's result record. node/pod totals
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# come from the caller's already-fetched k8s_data; this adds ns/dply/pvc counts.
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def comp-kubectl-summary-counts [ws_root: string, infra: string, version: string, k8s_data: record]: nothing -> record {
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let nodes = ($k8s_data.nodes? | default [])
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let pods = ($k8s_data.pods? | default [])
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let nodes_total = ($nodes | length)
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let nodes_ready = ($nodes | where {|n|
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($n | get -o status | default {} | get -o conditions | default []) | any { ($in.type? == "Ready") and ($in.status? == "True") }
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} | length)
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let pods_total = ($pods | length)
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let pods_running = ($pods | where { ($in | get -o status | default {} | get -o phase | default "") == "Running" } | length)
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let cp_ip = ($nodes | get 0? | default {} | get -o status | default {} | get -o addresses | default [] | where { $in.type? == "InternalIP" } | get 0? | get -o address | default "")
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let r = (comp-kubectl-ssh $ws_root $infra "get namespaces,deployments,pvc -A --no-headers -o json")
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let counts = if $r.exit_code == 0 {
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let items = (try { $r.stdout | from json | get -o items | default [] } catch { [] })
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{
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ns: ($items | where { ($in.kind? | default "") == "Namespace" } | length),
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dply: ($items | where { ($in.kind? | default "") == "Deployment" } | length),
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pvc: ($items | where { (($in.kind? | default "") == "PersistentVolumeClaim") and (($in.status?.phase? | default "") == "Bound") } | length),
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}
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} else { { ns: 0, dply: 0, pvc: 0 } }
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{
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version: $version,
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namespaces: $counts.ns,
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deployments: $counts.dply,
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pvcs_bound: $counts.pvc,
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nodes_ready: $nodes_ready,
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nodes_total: $nodes_total,
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pods_running: $pods_running,
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pods_total: $pods_total,
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cp_ip: $cp_ip,
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last_sync: (date now | format date "%Y-%m-%dT%H:%M:%SZ"),
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}
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}
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# Fetch (--live) or read cached cluster summary: version, ns/dply/pvc counts, node+pod status.
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# Live: second lightweight SSH (counts only — separate from comp-ssh-k8s-data heavy JSON call).
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# Cache: writes .cluster-state.json on live fetch; reads it on non-live call.
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export def comp-cluster-summary [
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ws_root: string
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infra: string
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k8s_data: record # node/pod data already fetched by comp-ssh-k8s-data
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version: string # declared k0s/k8s version from settings — caller resolves via comp-settings-k0s-version
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--live
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]: nothing -> record {
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let empty = {
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version: "", namespaces: 0, deployments: 0, pvcs_bound: 0, last_sync: "",
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nodes_ready: 0, nodes_total: 0, pods_running: 0, pods_total: 0, cp_ip: "",
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}
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if not $live {
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let cache = (cluster-cache-path $ws_root $infra)
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let base = if ($cache | path exists) { open $cache } else { $empty }
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return ($base | merge { version: (if ($version | is-not-empty) { $version } else { $base.version? | default "" }) })
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}
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# Live: counts come from the declared remote kubectl (SSH to control-plane).
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# provisioning never runs kubectl locally — see comp-kubectl-access.
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let result = (comp-kubectl-summary-counts $ws_root $infra $version $k8s_data)
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$result | to json | save -f (cluster-cache-path $ws_root $infra)
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$result
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}
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# One-line cluster summary badge for the CLUSTER COMPONENTS header.
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export def comp-cluster-badge [summary: record]: nothing -> string {
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if ($summary | is-empty) { return "" }
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let ver = ($summary.version? | default "")
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let ns = ($summary.namespaces? | default 0)
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let pods = ($summary.pods_total? | default 0)
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if ($ver | is-empty) and $ns == 0 and $pods == 0 { return "" }
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let cp_str = if ($summary.cp_ip? | default "" | is-not-empty) { $"CP: ($summary.cp_ip)" } else { "" }
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let ver_str = if ($ver | is-not-empty) { $ver } else { "" }
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let nodes_str = if ($summary.nodes_total? | default 0) > 0 { $"($summary.nodes_ready)/($summary.nodes_total) nodes" } else { "" }
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let pods_str = if ($summary.pods_total? | default 0) > 0 { $"($summary.pods_running)/($summary.pods_total) pods" } else { "" }
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let ns_str = if $ns > 0 { $"($ns) ns" } else { "" }
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let dply_str = if ($summary.deployments? | default 0) > 0 { $"($summary.deployments) dply" } else { "" }
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let pvcs_str = if ($summary.pvcs_bound? | default 0) > 0 { $"($summary.pvcs_bound) pvcs" } else { "" }
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[$cp_str $ver_str $nodes_str $pods_str $ns_str $dply_str $pvcs_str] | where { $in | is-not-empty } | str join " "
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}
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# Parse a Kubernetes resource quantity (e.g. "529Mi", "1Gi", "1024Ki", "2G") to
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# bytes for numeric sorting and capacity math. Unparseable input yields 0.
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export def k8s-quantity-bytes [q: string]: nothing -> int {
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let s = ($q | str trim)
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if ($s | is-empty) { return 0 }
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let m = ($s | parse --regex '(?<num>[0-9.]+)(?<unit>[A-Za-z]*)' | get 0?)
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if ($m == null) { return 0 }
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let num = ($m.num | into float)
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let mult = (match $m.unit {
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"Ki" => 1024.0, "Mi" => 1048576.0, "Gi" => 1073741824.0, "Ti" => 1099511627776.0,
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"k" | "K" => 1000.0, "M" => 1000000.0, "G" => 1000000000.0, "T" => 1000000000000.0,
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_ => 1.0,
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})
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(($num * $mult) | math round | into int)
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}
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# Operator-relevant node labels: drop the well-known system/cloud domains so only
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# placement-meaningful labels (node_class, can_use_fip.*, custom) remain. Returns
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# a "k=v k=v" string (valueless labels shown as bare keys).
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export def node-operator-labels [labels: record]: nothing -> string {
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let system = ["kubernetes.io", "k8s.io", "hetzner.cloud", "topology.", "beta.", "csi."]
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$labels | transpose key value
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| where {|r| not ($system | any {|p| $r.key | str contains $p }) }
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| each {|r|
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# Boolean labels (value "true") and valueless labels show as the bare key —
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# if it's present it's set. Non-boolean labels keep key=value.
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if (($r.value | default "" | is-empty) or ($r.value == "true")) { $r.key } else { $"($r.key)=($r.value)" }
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}
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| str join " "
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}
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# Interpretive legend for `cluster top` columns — printed under the node table so
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# the numbers can be read without external context. Suppressed in json/yaml output.
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export def cluster-top-legend []: nothing -> nothing {
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print ""
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print "How to read it:"
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print " nominal physical CPU/RAM of the Hetzner type (cax11=2c/4Gi, cax21=4c/8Gi)."
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print " cpu /mem LIVE usage now (kubectl top). mem% is vs ALLOCATABLE (RAM minus"
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print " kernel+kube reservations), so it reads higher than vs nominal."
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print " req% sum of pod memory REQUESTS vs allocatable = what the scheduler"
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print " reserved. Healthy < 80%; it is the real 'fullness' for placement."
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print " lim% sum of pod memory LIMITS vs allocatable = overcommit. > 100% means"
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print " pods may collectively exceed RAM → OOM-kill risk under pressure."
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print " no-req containers with NO memory request — invisible to the scheduler,"
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print " cause blind bin-packing and are first to be OOM-killed."
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print " labels operator node labels (node_class, can_use_fip.*, custom) that drive"
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print " placement; system/cloud domains (kubernetes.io, hetzner.cloud) hidden."
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}
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# Format a byte count as a compact Gi/Mi string.
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export def fmt-gib [b: int]: nothing -> string {
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if $b >= 1073741824 { $"(($b / 1073741824 * 10 | math round) / 10)Gi" } else { $"(($b / 1048576) | math round)Mi" }
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}
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# Oldest last_sync across .servers-state.json and .cluster-state.json (= most stale data shown).
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export def comp-cache-last-sync [ws_root: string, infra: string]: nothing -> string {
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let srv_ts = do {
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let p = ($ws_root | path join "infra" $infra ".servers-state.json")
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if ($p | path exists) {
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open $p | values | each { $in.last_sync? | default "" } | where { $in | is-not-empty }
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} else { [] }
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}
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let cl_ts = do {
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let p = (cluster-cache-path $ws_root $infra)
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if ($p | path exists) {
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let v = ((open $p).last_sync? | default "")
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if ($v | is-not-empty) { [$v] } else { [] }
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} else { [] }
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}
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let all = ($srv_ts | append $cl_ts) | where { $in | is-not-empty }
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if ($all | is-empty) { "" } else { $all | sort | first }
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}
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# Single SSH session to CP: fetch pods + nodes as JSON in one connection.
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# Returns {pods: list<record>, nodes: list<record>} — parsed from kubectl -o json output.
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# Pods have metadata.namespace/name and status.phase/containerStatuses fields.
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# Nodes have metadata.name and status.conditions fields.
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export def comp-ssh-k8s-data [
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ws_root: string,
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infra: string,
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server: string,
|
||||
--systemd-services: list<string> = [], # service names to check via systemctl is-active
|
||||
]: nothing -> record {
|
||||
let empty = { pods: [], nodes: [], systemd: {} }
|
||||
if ($server | is-empty) {
|
||||
print --stderr "[live] no server resolved — cannot fetch k8s data"
|
||||
return $empty
|
||||
}
|
||||
let info = (comp-server-ssh-info $ws_root $infra $server)
|
||||
if (is-debug-level 2) {
|
||||
let key_part = if ($info.key | is-not-empty) { $" -i ($info.key)" } else { "" }
|
||||
print --stderr $"[live] ssh($key_part) ($info.user)@($info.host) kubectl get pods+nodes -o json"
|
||||
}
|
||||
# PATH: SSH non-interactive sessions may not have /usr/local/bin (where k0s and kubeadm kubectl live).
|
||||
# KUBECONFIG: kubeadm clusters set this in ~/.bashrc (not sourced in BatchMode SSH).
|
||||
# Probe /root/.kube/config then /etc/kubernetes/admin.conf; k0s kubectl ignores KUBECONFIG entirely.
|
||||
let systemd_snippet = if ($systemd_services | is-not-empty) {
|
||||
let checks = ($systemd_services | each {|svc| $"printf '($svc):'; systemctl is-active ($svc) 2>/dev/null || true"} | str join "; ")
|
||||
$"echo '===SYSTEMD==='; ($checks)"
|
||||
} else { "" }
|
||||
let cmd_base = "export PATH=/usr/local/bin:/usr/bin:/bin:$PATH; for _kc in /root/.kube/config /etc/kubernetes/admin.conf; do [ -f \"$_kc\" ] && { export KUBECONFIG=\"$_kc\"; break; }; done; kc() { if command -v kubectl >/dev/null 2>&1; then kubectl \"$@\"; else k0s kubectl \"$@\"; fi; }; echo '===PODS==='; kc get pods --all-namespaces -o json 2>/dev/null || echo '{\"items\":[]}'; echo '===NODES==='; kc get nodes -o json 2>/dev/null || echo '{\"items\":[]}'"
|
||||
let cmd = if ($systemd_snippet | is-not-empty) { $"($cmd_base); ($systemd_snippet)" } else { $cmd_base }
|
||||
let result = (comp-ssh-run $info.user $info.key $info.host $cmd)
|
||||
if (is-debug-level 2) {
|
||||
print --stderr $"[live] SSH exit=($result.exit_code) stdout_len=($result.stdout | str length)"
|
||||
}
|
||||
if $result.exit_code != 0 { return $empty }
|
||||
let all_lines = ($result.stdout | str replace --all "\r" "" | lines)
|
||||
let pods_idx = ($all_lines | enumerate | where { ($in.item | str trim) == "===PODS===" } | get 0? | get -o index | default (-1))
|
||||
let nodes_idx = ($all_lines | enumerate | where { ($in.item | str trim) == "===NODES===" } | get 0? | get -o index | default (-1))
|
||||
let systemd_idx = ($all_lines | enumerate | where { ($in.item | str trim) == "===SYSTEMD===" } | get 0? | get -o index | default (-1))
|
||||
if (is-debug-level 3) {
|
||||
print --stderr $"[live] pods_idx=($pods_idx) nodes_idx=($nodes_idx) systemd_idx=($systemd_idx) total_lines=($all_lines | length)"
|
||||
}
|
||||
let pods = if $pods_idx >= 0 {
|
||||
let from = ($pods_idx + 1)
|
||||
let raw = if $nodes_idx > $pods_idx { $all_lines | skip $from | first ($nodes_idx - $from) } else { $all_lines | skip $from }
|
||||
try { $raw | str join "\n" | from json | get -o items | default [] } catch {|e|
|
||||
if (is-debug-level 1) {
|
||||
print --stderr $"[live] pods JSON parse error: ($e.msg | str substring 0..120)"
|
||||
print --stderr $"[live] pods first line: ($raw | get 0? | default '')"
|
||||
}
|
||||
[]
|
||||
}
|
||||
} else { [] }
|
||||
let nodes = if $nodes_idx >= 0 {
|
||||
let from = ($nodes_idx + 1)
|
||||
let raw = if $systemd_idx > $nodes_idx { $all_lines | skip $from | first ($systemd_idx - $from) } else { $all_lines | skip $from }
|
||||
try { $raw | str join "\n" | from json | get -o items | default [] } catch {|e|
|
||||
if (is-debug-level 1) {
|
||||
print --stderr $"[live] nodes JSON parse error: ($e.msg | str substring 0..120)"
|
||||
}
|
||||
[]
|
||||
}
|
||||
} else { [] }
|
||||
let systemd = if $systemd_idx >= 0 {
|
||||
$all_lines | skip ($systemd_idx + 1)
|
||||
| each {|ln|
|
||||
let parts = ($ln | str trim | split column ":" name status)
|
||||
if ($parts | length) >= 1 and ($parts | get 0 | get name | is-not-empty) {
|
||||
{ ($parts | get 0 | get name): ($parts | get 0 | get status | str trim) }
|
||||
} else { {} }
|
||||
}
|
||||
| reduce -f {} {|it, acc| $acc | merge $it }
|
||||
} else { {} }
|
||||
if (is-debug-level 2) {
|
||||
print --stderr $"[live] parsed pods=($pods | length) nodes=($nodes | length) systemd_keys=($systemd | columns | length)"
|
||||
}
|
||||
{ pods: $pods, nodes: $nodes, systemd: $systemd }
|
||||
}
|
||||
|
||||
# Public API: return pod records for a server (used by describe-pod and external callers).
|
||||
export def comp-ssh-pods [ws_root: string, infra: string, server: string]: nothing -> list {
|
||||
(comp-ssh-k8s-data $ws_root $infra $server).pods
|
||||
}
|
||||
|
||||
# Run kubectl describe pod -n <namespace> <pod> via SSH. Returns describe output as string.
|
||||
export def comp-ssh-describe-pod [ws_root: string, infra: string, server: string, namespace: string, pod: string]: nothing -> string {
|
||||
let info = (comp-server-ssh-info $ws_root $infra $server)
|
||||
let cmd = $"if command -v kubectl >/dev/null 2>&1; then kubectl describe pod -n ($namespace) ($pod); else k0s kubectl describe pod -n ($namespace) ($pod); fi"
|
||||
let result = (comp-ssh-run $info.user $info.key $info.host $cmd)
|
||||
if $result.exit_code != 0 { $result.stderr | str trim } else { $result.stdout | str trim }
|
||||
}
|
||||
|
||||
# Summarise pod records (from kubectl -o json) into {live, detail}.
|
||||
def comp-kubectl-summarise [pods: list]: nothing -> record {
|
||||
if ($pods | is-empty) { return { live: "deployed", detail: "no pods" } }
|
||||
# Exclude Succeeded pods (completed jobs/migrations) — they never return to Running
|
||||
# and would distort the ratio. Failed phase and error-waiting pods are kept and
|
||||
# classified as degraded.
|
||||
let active = ($pods | where { ($in | get -o status | default {} | get -o phase | default "") != "Succeeded" })
|
||||
let total = ($active | length)
|
||||
let running = ($active | where { ($in | get -o status | default {} | get -o phase | default "") == "Running" } | length)
|
||||
let pending = ($active | where { ($in | get -o status | default {} | get -o phase | default "") == "Pending" } | length)
|
||||
|
||||
# Any pod in Failed phase OR any container waiting with an error reason → degraded.
|
||||
let error_reasons = ["CrashLoopBackOff", "ImagePullBackOff", "ErrImagePull",
|
||||
"Error", "OOMKilled", "CreateContainerError",
|
||||
"CreateContainerConfigError", "RunContainerError",
|
||||
"InvalidImageName", "PostStartHookError"]
|
||||
let failing = ($active | where { |p|
|
||||
let phase = ($p | get -o status | default {} | get -o phase | default "")
|
||||
if $phase == "Failed" { true } else {
|
||||
let cs = ($p | get -o status | default {} | get -o containerStatuses | default [])
|
||||
let ics = ($p | get -o status | default {} | get -o initContainerStatuses | default [])
|
||||
($cs | append $ics) | any { |c|
|
||||
($c | get -o state | default {} | get -o waiting | default {} | get -o reason | default "") in $error_reasons
|
||||
}
|
||||
}
|
||||
} | length)
|
||||
|
||||
let live = if $failing > 0 { "degraded"
|
||||
} else if $pending > 0 { "starting"
|
||||
} else if $total == 0 { "deployed"
|
||||
} else if $running == $total { "healthy"
|
||||
} else { "partial" }
|
||||
|
||||
let detail = if $failing > 0 {
|
||||
$"($running)/($total) pods running ($failing) failing"
|
||||
} else {
|
||||
$"($running)/($total) pods running"
|
||||
}
|
||||
{ live: $live, detail: $detail }
|
||||
}
|
||||
|
||||
# Filter pod records by namespace (exact match) and name substring.
|
||||
def comp-filter-pods [namespace: string, search: string, pods: list]: nothing -> list {
|
||||
let ns_filtered = if ($namespace | is-not-empty) {
|
||||
$pods | where { ($in | get -o metadata | default {} | get -o namespace | default "") == $namespace }
|
||||
} else { $pods }
|
||||
$ns_filtered | where { ($in | get -o metadata | default {} | get -o name | default "") | str contains $search }
|
||||
}
|
||||
|
||||
# Summarise node records (from kubectl -o json) into {live, detail}.
|
||||
def comp-kubectl-nodes-summarise [nodes: list]: nothing -> record {
|
||||
if ($nodes | is-empty) { return { live: "—", detail: "no node data" } }
|
||||
let total = ($nodes | length)
|
||||
let ready = ($nodes | where { |n|
|
||||
$n | get -o status | default {} | get -o conditions | default []
|
||||
| any { ($in | get -o type | default "") == "Ready" and ($in | get -o status | default "") == "True" }
|
||||
} | length)
|
||||
let live = if $ready == $total { "healthy"
|
||||
} else if $ready == 0 { "degraded"
|
||||
} else { "partial" }
|
||||
{ live: $live, detail: $"($ready)/($total) nodes Ready" }
|
||||
}
|
||||
|
||||
# Live check for a component using pre-fetched k8s_data {pods, nodes}.
|
||||
# Resolves strategy from comp.live_check; falls back to namespace/pod_selector on the component.
|
||||
# 'systemd strategy always returns "—" in live (fast) mode — requires prvng c health.
|
||||
# Returns {live: string, detail: string}.
|
||||
export def comp-live-check [name: string, comp: record, k8s_data: record]: nothing -> record {
|
||||
let lc = ($comp | get -o live_check | default {})
|
||||
let strategy = ($lc | get -o strategy | default "none" | into string)
|
||||
match $strategy {
|
||||
"k8s_pods" => {
|
||||
if ($k8s_data.pods | is-empty) { return { live: "—", detail: "no pod data" } }
|
||||
let ns = do {
|
||||
let explicit = ($lc | get -o namespace | default "")
|
||||
if ($explicit | is-not-empty) { $explicit } else { $comp | get -o namespace | default "" }
|
||||
}
|
||||
let sel = do {
|
||||
let explicit = ($lc | get -o selector | default "")
|
||||
if ($explicit | is-not-empty) { $explicit } else {
|
||||
let ps = ($comp | get -o pod_selector | default "")
|
||||
if ($ps | is-not-empty) { $ps } else { $name | str replace --all "_" "-" }
|
||||
}
|
||||
}
|
||||
let matching = (comp-filter-pods $ns $sel $k8s_data.pods)
|
||||
if ($matching | is-empty) { return { live: "—", detail: $"no pods: ($sel)" } }
|
||||
comp-kubectl-summarise $matching
|
||||
}
|
||||
"k8s_nodes" => {
|
||||
if ($k8s_data.nodes | is-empty) { return { live: "—", detail: "no node data" } }
|
||||
let sel = ($lc | get -o selector | default "")
|
||||
let filtered = if ($sel | is-not-empty) {
|
||||
$k8s_data.nodes | where { ($in | get -o metadata | default {} | get -o name | default "") | str contains $sel }
|
||||
} else {
|
||||
$k8s_data.nodes
|
||||
}
|
||||
comp-kubectl-nodes-summarise $filtered
|
||||
}
|
||||
"k8s_api" => {
|
||||
# apiserver healthy if kubectl returned any node data
|
||||
if ($k8s_data.nodes | is-not-empty) or ($k8s_data.pods | is-not-empty) {
|
||||
{ live: "healthy", detail: "apiserver ok" }
|
||||
} else {
|
||||
{ live: "—", detail: "apiserver unreachable" }
|
||||
}
|
||||
}
|
||||
"systemd" => {
|
||||
let svc = ($lc | get -o service | default "")
|
||||
if ($svc | is-empty) { return { live: "—", detail: "health: systemd" } }
|
||||
let units = ($k8s_data | get -o systemd | default {})
|
||||
if ($units | is-empty) { return { live: "—", detail: "health: systemd" } }
|
||||
let active = ($units | get -o $svc | default "")
|
||||
match $active {
|
||||
"active" => { live: "healthy", detail: $"systemd: ($svc) active" },
|
||||
"inactive" => { live: "degraded", detail: $"systemd: ($svc) inactive" },
|
||||
"failed" => { live: "degraded", detail: $"systemd: ($svc) failed" },
|
||||
_ => { live: "—", detail: $"systemd: ($svc) ($active)" },
|
||||
}
|
||||
}
|
||||
"on_demand" => { live: "—", detail: "on-demand" }
|
||||
_ => { live: "—", detail: "no live check" }
|
||||
}
|
||||
}
|
||||
|
||||
# Extract pod summary records for a component from pre-fetched pod JSON records.
|
||||
# Returns list of {namespace, pod, ready, status}.
|
||||
export def comp-pods-for [namespace: string, name: string, pods: list, pod_selector: string = ""]: nothing -> list {
|
||||
let search = if ($pod_selector | is-not-empty) { $pod_selector } else { $name | str replace --all "_" "-" }
|
||||
(comp-filter-pods $namespace $search $pods)
|
||||
| each {|p|
|
||||
let meta = ($p | get -o metadata | default {})
|
||||
let status = ($p | get -o status | default {})
|
||||
let cs = ($status | get -o containerStatuses | default [])
|
||||
let ready = ($cs | where { $in.ready? | default false } | length)
|
||||
{
|
||||
namespace: ($meta | get -o namespace | default ""),
|
||||
pod: ($meta | get -o name | default ""),
|
||||
ready: $"($ready)/($cs | length)",
|
||||
status: ($status | get -o phase | default ""),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Add table
Reference in a new issue