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feat(crowdsec): switch agent to loki acquisition with static identity

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Read traefik logs from Loki instead of file tail. Static machine identity via pre-created secret stops 403 register races. Add janitor cronjob, dashboards, whitelists and metrics.
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forust committed 2026-09-18 19:02:43 +02:00
1 parent 5936de3e56
commit 7cca330438
4 files changed
+326 -47
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crowdsec/k8s/crowdsec-values.yaml
+92 -47
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@@ -1,57 +1,102 @@
container_runtime: containerd
agent:
acquisition: []
additionalAcquisition:
- labels:
type: traefik
limit: 1000
query: |
{namespace="traefik"}
source: loki
url: http://loki.prometheus.svc.cluster.local:3100/
wait_for_ready: 30s
env:
- name: COLLECTIONS
value: "crowdsecurity/traefik crowdsecurity/base-http-scenarios"
value: crowdsecurity/traefik crowdsecurity/base-http-scenarios
- name: DISABLE_COLLECTIONS
value: "crowdsecurity/linux crowdsecurity/sshd"
acquisition:
- namespace: traefik
podName: "*traefik*"
program: traefik
poll_without_inotify: true
resources:
requests:
cpu: 50m
memory: 100Mi
limits:
cpu: 200m
memory: 500Mi
lapi:
env:
- name: COLLECTIONS
value: "crowdsecurity/traefik crowdsecurity/base-http-scenarios"
- name: DISABLE_COLLECTIONS
value: "crowdsecurity/linux crowdsecurity/sshd"
service:
type: ClusterIP
persistentVolume:
data:
enabled: true
storageClassName: local-path-retain
size: 1Gi
config:
enabled: true
storageClassName: local-path-retain
size: 100Mi
storeLAPICscliCredentialsInSecret: true
resources:
requests:
cpu: 50m
memory: 150Mi
limits:
cpu: 400m
memory: 500Mi
metrics:
value: crowdsecurity/sshd
metrics:
enabled: true
serviceMonitor:
additionalLabels:
release: prometheus-stack
enabled: true
interval: 30s
scrapeTimeout: 10s
namespace: prometheus
# Static machine identity: agent pods mount pre-created LAPI credentials
# (Secret crowdsec-agent-credentials, key local_api_credentials.yaml)
# at the exact path the agent entrypoint expects. Together with the
# patched register-init (enforced by janitor-cronjob.yaml) the agent
# never calls `cscli lapi register` in steady state, so pod names,
# restarts and reboots can no longer break it.
extraVolumes:
- name: static-creds
secret:
secretName: crowdsec-agent-credentials
items:
- key: local_api_credentials.yaml
path: local_api_credentials.yaml
extraVolumeMounts:
- name: static-creds
mountPath: /tmp_config/local_api_credentials.yaml
subPath: local_api_credentials.yaml
readOnly: true
resources:
limits:
cpu: 200m
memory: 500Mi
requests:
cpu: 50m
memory: 100Mi
config:
parsers:
s02-enrich:
mobile-whitelist.yaml: |
name: forust/mobile-whitelist
description: "Whitelist SWAN/4ka mobile network"
whitelist:
reason: "Mobile IP whitelist"
cidr:
- "84.245.64.0/18"
postoverflows:
s01-whitelist:
home-dynamic-ip.yaml: |
name: forust/home-dynamic-ip
description: "Whitelist home dynamic IP"
whitelist:
reason: "Home dynamic IP"
expression:
- evt.Overflow.Alert.Source.IP in LookupHost("ddns.forust.xyz")
lapi:
env:
- name: COLLECTIONS
value: crowdsecurity/traefik crowdsecurity/base-http-scenarios
- name: DISABLE_COLLECTIONS
value: crowdsecurity/linux crowdsecurity/sshd
metrics:
enabled: true
serviceMonitor:
additionalLabels:
release: prometheus-stack
enabled: true
persistentVolume:
config:
enabled: true
size: 100Mi
storageClassName: local-path-retain
data:
enabled: true
size: 1Gi
storageClassName: local-path-retain
resources:
limits:
cpu: 400m
memory: 500Mi
requests:
cpu: 50m
memory: 150Mi
service:
type: ClusterIP
storeLAPICscliCredentialsInSecret: true
crowdsec/k8s/grafana-dashboards.yaml
+32
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@@ -0,0 +1,32 @@
apiVersion: v1
data:
crowdsec-overview.json: "{\n \"__inputs\": [\n {\n \"name\": \"DS_PROMETHEUS\",\n \"label\": \"Prometheus\",\n \"description\": \"\",\n \"type\": \"datasource\",\n \"pluginId\": \"prometheus\",\n \"pluginName\": \"Prometheus\"\n }\n ],\n \"__requires\": [\n {\n \"type\": \"grafana\",\n \"id\": \"grafana\",\n \"name\": \"Grafana\",\n \"version\": \"8.1.2\"\n },\n {\n \"type\": \"panel\",\n \"id\": \"graph\",\n \"name\": \"Graph (old)\",\n \"version\": \"\"\n },\n {\n \"type\": \"datasource\",\n \"id\": \"prometheus\",\n \"name\": \"Prometheus\",\n \"version\": \"1.0.0\"\n },\n {\n \"type\": \"panel\",\n \"id\": \"stat\",\n \"name\": \"Stat\",\n \"version\": \"\"\n },\n {\n \"type\": \"panel\",\n \"id\": \"timeseries\",\n \"name\": \"Time series\",\n \"version\": \"\"\n }\n ],\n \"annotations\": {\n \"list\": [\n {\n \"builtIn\": 1,\n \"datasource\": \"-- Grafana --\",\n \"enable\": true,\n \"hide\": true,\n \"iconColor\": \"rgba(0, 211, 255, 1)\",\n \"name\": \"Annotations & Alerts\",\n \"target\": {\n \"limit\": 100,\n \"matchAny\": false,\n \"tags\": [],\n \"type\": \"dashboard\"\n },\n \"type\": \"dashboard\"\n }\n ]\n },\n \"editable\": true,\n \"gnetId\": null,\n \"graphTooltip\": 0,\n \"id\": null,\n \"links\": [],\n \"panels\": [\n {\n \"collapsed\": false,\n \"datasource\": null,\n \"gridPos\": {\n \"h\": 1,\n \"w\": 24,\n \"x\": 0,\n \"y\": 0\n },\n \"id\": 24,\n \"panels\": [],\n \"title\": \"Summary\",\n \"type\": \"row\"\n },\n {\n \"cacheTimeout\": null,\n \"datasource\": \"${DS_PROMETHEUS}\",\n \"fieldConfig\": {\n \"defaults\": {\n \"color\": {\n \"mode\": \"thresholds\"\n },\n \"mappings\": [\n {\n \"options\": {\n \"match\": \"null\",\n \"result\": {\n \"text\": \"N/A\"\n }\n },\n \"type\": \"special\"\n }\n ],\n \"thresholds\": {\n \"mode\": \"absolute\",\n \"steps\": [\n {\n \"color\": \"#E02F44\",\n \"value\": null\n },\n {\n \"color\": \"#E02F44\",\n \"value\": 10\n },\n {\n \"color\": \"#299c46\",\n \"value\": 10\n }\n ]\n },\n \"unit\": \"none\"\n },\n \"overrides\": []\n },\n \"gridPos\": {\n \"h\": 8,\n \"w\": 6,\n \"x\": 0,\n \"y\": 1\n },\n \"id\": 2,\n \"interval\": null,\n \"links\": [],\n \"maxDataPoints\": 100,\n \"options\": {\n \"colorMode\": \"background\",\n \"graphMode\": \"none\",\n \"justifyMode\": \"auto\",\n \"orientation\": \"horizontal\",\n \"reduceOptions\": {\n \"calcs\": [\n \"lastNotNull\"\n ],\n \"fields\": \"\",\n \"values\": false\n },\n \"text\": {},\n \"textMode\": \"auto\"\n },\n \"pluginVersion\": \"8.1.2\",\n \"targets\": [\n {\n \"exemplar\": true,\n \"expr\": \"count(cs_info)\",\n \"interval\": \"\",\n \"legendFormat\": \"\",\n \"refId\": \"A\"\n }\n ],\n \"timeFrom\": null,\n \"timeShift\": null,\n \"title\": \"Running Crowdsec\",\n \"transparent\": true,\n \"type\": \"stat\"\n },\n {\n \"aliasColors\": {},\n \"bars\": false,\n \"dashLength\": 10,\n \"dashes\": false,\n \"datasource\": \"${DS_PROMETHEUS}\",\n \"decimals\": 1,\n \"fieldConfig\": {\n \"defaults\": {\n \"links\": []\n },\n \"overrides\": []\n },\n \"fill\": 1,\n \"fillGradient\": 0,\n \"gridPos\": {\n \"h\": 8,\n \"w\": 18,\n \"x\": 6,\n \"y\": 1\n },\n \"hiddenSeries\": false,\n \"id\": 8,\n \"legend\": {\n \"alignAsTable\": true,\n \"avg\": false,\n \"current\": false,\n \"max\": false,\n \"min\": false,\n \"rightSide\": true,\n \"show\": true,\n \"sort\": \"total\",\n \"sortDesc\": true,\n \"total\": true,\n \"values\": true\n },\n \"lines\": true,\n \"linewidth\": 1,\n \"nullPointMode\": \"null\",\n \"options\": {\n \"alertThreshold\": true\n },\n \"percentage\": false,\n \"pluginVersion\": \"8.1.2\",\n \"pointradius\": 2,\n \"points\": false,\n \"renLine truncated
kind: ConfigMap
metadata:
labels:
app.kubernetes.io/managed-by: manual
grafana_dashboard: '1'
name: crowdsec-crowdsec-overview
namespace: prometheus
---
apiVersion: v1
data:
crowdsec-lapi-metrics.json: "{\n \"__inputs\": [\n {\n \"name\": \"DS_PROMETHEUS\",\n \"label\": \"Prometheus\",\n \"description\": \"\",\n \"type\": \"datasource\",\n \"pluginId\": \"prometheus\",\n \"pluginName\": \"Prometheus\"\n }\n ],\n \"__requires\": [\n {\n \"type\": \"panel\",\n \"id\": \"bargauge\",\n \"name\": \"Bar gauge\",\n \"version\": \"\"\n },\n {\n \"type\": \"grafana\",\n \"id\": \"grafana\",\n \"name\": \"Grafana\",\n \"version\": \"8.1.2\"\n },\n {\n \"type\": \"datasource\",\n \"id\": \"prometheus\",\n \"name\": \"Prometheus\",\n \"version\": \"1.0.0\"\n }\n ],\n \"annotations\": {\n \"list\": [\n {\n \"builtIn\": 1,\n \"datasource\": \"-- Grafana --\",\n \"enable\": true,\n \"hide\": true,\n \"iconColor\": \"rgba(0, 211, 255, 1)\",\n \"name\": \"Annotations & Alerts\",\n \"target\": {\n \"limit\": 100,\n \"matchAny\": false,\n \"tags\": [],\n \"type\": \"dashboard\"\n },\n \"type\": \"dashboard\"\n }\n ]\n },\n \"editable\": true,\n \"gnetId\": null,\n \"graphTooltip\": 0,\n \"id\": null,\n \"iteration\": 1655915193937,\n \"links\": [],\n \"panels\": [\n {\n \"collapsed\": false,\n \"datasource\": null,\n \"gridPos\": {\n \"h\": 1,\n \"w\": 24,\n \"x\": 0,\n \"y\": 0\n },\n \"id\": 10,\n \"panels\": [],\n \"title\": \"Agents\",\n \"type\": \"row\"\n },\n {\n \"datasource\": \"${DS_PROMETHEUS}\",\n \"fieldConfig\": {\n \"defaults\": {\n \"color\": {\n \"mode\": \"thresholds\"\n },\n \"mappings\": [],\n \"thresholds\": {\n \"mode\": \"absolute\",\n \"steps\": [\n {\n \"color\": \"green\",\n \"value\": null\n },\n {\n \"color\": \"red\",\n \"value\": 80\n }\n ]\n }\n },\n \"overrides\": []\n },\n \"gridPos\": {\n \"h\": 8,\n \"w\": 12,\n \"x\": 0,\n \"y\": 1\n },\n \"id\": 2,\n \"options\": {\n \"displayMode\": \"gradient\",\n \"orientation\": \"vertical\",\n \"reduceOptions\": {\n \"calcs\": [\n \"lastNotNull\"\n ],\n \"fields\": \"\",\n \"values\": false\n },\n \"showUnfilled\": false,\n \"text\": {}\n },\n \"pluginVersion\": \"8.1.2\",\n \"repeat\": \"query0\",\n \"repeatDirection\": \"h\",\n \"targets\": [\n {\n \"exemplar\": false,\n \"expr\": \"sum(rate(cs_lapi_request_duration_seconds_bucket{endpoint=\\\"/v1/watchers/login\\\", instance=\\\"$lapi\\\"}[$__rate_interval])) by (le)\",\n \"format\": \"heatmap\",\n \"interval\": \"\",\n \"legendFormat\": \"{{le}}\",\n \"refId\": \"A\"\n }\n ],\n \"title\": \"Agents Login\",\n \"type\": \"heatmap\"\n },\n {\n \"datasource\": \"${DS_PROMETHEUS}\",\n \"fieldConfig\": {\n \"defaults\": {\n \"color\": {\n \"mode\": \"thresholds\"\n },\n \"mappings\": [],\n \"thresholds\": {\n \"mode\": \"absolute\",\n \"steps\": [\n {\n \"color\": \"green\",\n \"value\": null\n }\n ]\n },\n \"unit\": \"none\"\n },\n \"overrides\": []\n },\n \"gridPos\": {\n \"h\": 8,\n \"w\": 12,\n \"x\": 12,\n \"y\": 1\n },\n \"id\": 6,\n \"options\": {\n \"displayMode\": \"gradient\",\n \"orientation\": \"auto\",\n \"reduceOptions\": {\n \"calcs\": [\n \"lastNotNull\"\n ],\n \"fields\": \"\",\n \"values\": false\n },\n \"showUnfilled\": false,\n \"text\": {}\n },\n \"pluginVersion\": \"8.1.2\",\n \"targets\": [\n {\n \"exemplar\": true,\n \"expr\": \"sum(rate(cs_lapi_request_duration_seconds_bucket{endpoint=\\\"/v1/watchers/login\\\"}[$__rate_interval])) by (le)\",\n \"format\": \"heatmap\",\n \"interval\": \"\",\n \"legendFormat\": \"{{le}}\",\n \"refId\": \"A\"\n }\n ],\n \"title\": \"Heartbeat\",\n \"type\": \"heatmap\"\n },\n {\n \"collapsed\": false,\n \"datasource\": null,\n \"gridPos\": {\n \"h\": 1,\n \"w\": 24,\n \"x\": 0,\n \"y\": 9\n },\n \"id\": 12,\n \"panels\": [],\n \"title\": \"Decisions\",\n \"type\": \"row\"\n },\n {\n \"datasource\": \"${DS_PROMETHEUS}\",\n Line truncated
kind: ConfigMap
metadata:
labels:
app.kubernetes.io/managed-by: manual
grafana_dashboard: '1'
name: crowdsec-crowdsec-lapi-metrics
namespace: prometheus
---
apiVersion: v1
data:
crowdsec-insight.json: "{\n \"__inputs\": [\n {\n \"name\": \"DS_PROMETHEUS\",\n \"label\": \"Prometheus\",\n \"description\": \"\",\n \"type\": \"datasource\",\n \"pluginId\": \"prometheus\",\n \"pluginName\": \"Prometheus\"\n }\n ],\n \"__requires\": [\n {\n \"type\": \"panel\",\n \"id\": \"bargauge\",\n \"name\": \"Bar gauge\",\n \"version\": \"\"\n },\n {\n \"type\": \"panel\",\n \"id\": \"gauge\",\n \"name\": \"Gauge\",\n \"version\": \"\"\n },\n {\n \"type\": \"grafana\",\n \"id\": \"grafana\",\n \"name\": \"Grafana\",\n \"version\": \"8.1.2\"\n },\n {\n \"type\": \"datasource\",\n \"id\": \"prometheus\",\n \"name\": \"Prometheus\",\n \"version\": \"1.0.0\"\n },\n {\n \"type\": \"panel\",\n \"id\": \"stat\",\n \"name\": \"Stat\",\n \"version\": \"\"\n }\n ],\n \"annotations\": {\n \"list\": [\n {\n \"builtIn\": 1,\n \"datasource\": \"-- Grafana --\",\n \"enable\": true,\n \"hide\": true,\n \"iconColor\": \"rgba(0, 211, 255, 1)\",\n \"name\": \"Annotations & Alerts\",\n \"target\": {\n \"limit\": 100,\n \"matchAny\": false,\n \"tags\": [],\n \"type\": \"dashboard\"\n },\n \"type\": \"dashboard\"\n }\n ]\n },\n \"editable\": true,\n \"gnetId\": null,\n \"graphTooltip\": 0,\n \"id\": null,\n \"iteration\": 1655915159751,\n \"links\": [],\n \"panels\": [\n {\n \"collapsed\": true,\n \"datasource\": null,\n \"gridPos\": {\n \"h\": 1,\n \"w\": 24,\n \"x\": 0,\n \"y\": 0\n },\n \"id\": 22,\n \"panels\": [\n {\n \"cacheTimeout\": null,\n \"datasource\": \"${DS_PROMETHEUS}\",\n \"fieldConfig\": {\n \"defaults\": {\n \"color\": {\n \"mode\": \"thresholds\"\n },\n \"mappings\": [\n {\n \"options\": {\n \"match\": \"null\",\n \"result\": {\n \"text\": \"N/A\"\n }\n },\n \"type\": \"special\"\n }\n ],\n \"thresholds\": {\n \"mode\": \"absolute\",\n \"steps\": [\n {\n \"color\": \"green\",\n \"value\": null\n },\n {\n \"color\": \"red\",\n \"value\": 80\n }\n ]\n },\n \"unit\": \"dateTimeAsIso\"\n },\n \"overrides\": []\n },\n \"gridPos\": {\n \"h\": 9,\n \"w\": 5,\n \"x\": 2,\n \"y\": 1\n },\n \"id\": 2,\n \"interval\": null,\n \"links\": [],\n \"maxDataPoints\": 100,\n \"options\": {\n \"colorMode\": \"none\",\n \"graphMode\": \"none\",\n \"justifyMode\": \"auto\",\n \"orientation\": \"horizontal\",\n \"reduceOptions\": {\n \"calcs\": [\n \"lastNotNull\"\n ],\n \"fields\": \"\",\n \"values\": false\n },\n \"text\": {},\n \"textMode\": \"auto\"\n },\n \"pluginVersion\": \"8.1.2\",\n \"targets\": [\n {\n \"exemplar\": true,\n \"expr\": \"(process_start_time_seconds{instance=\\\"$instance\\\"})*1000\",\n \"interval\": \"\",\n \"legendFormat\": \"{{instance}}\",\n \"refId\": \"A\"\n }\n ],\n \"timeFrom\": null,\n \"timeShift\": null,\n \"title\": \"Up since\",\n \"type\": \"stat\"\n },\n {\n \"datasource\": \"${DS_PROMETHEUS}\",\n \"fieldConfig\": {\n \"defaults\": {\n \"displayName\": \"\",\n \"mappings\": [],\n \"thresholds\": {\n \"mode\": \"absolute\",\n \"steps\": [\n {\n \"color\": \"green\",\n \"value\": null\n }\n ]\n },\n \"unit\": \"decbytes\"\n },\n \"overrides\": []\n },\n \"gridPos\": {\n \"h\": 9,\n \"w\": 5,\n \"x\": 7,\n \"y\": 1\n },\n \"id\": 4,\n \"options\": {\n \"orientation\": \"auto\",\n \"reduceOptions\": {\n \"calcs\": [\n \"mean\"\n ],\n \"fields\": \"\",\n \"values\": false\n },\Line truncated
kind: ConfigMap
metadata:
labels:
app.kubernetes.io/managed-by: manual
grafana_dashboard: '1'
name: crowdsec-crowdsec-insight
namespace: prometheus
crowdsec/k8s/janitor-cronjob.yaml
+195
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@@ -0,0 +1,195 @@
# CrowdSec self-healing: static machine identity + enforcement loops.
#
# Problem it fixes: the chart's agent init container runs
# `cscli lapi register --machine "$POD_NAME" ...`
# unconditionally. Credentials live in an emptyDir, the machine row lives
# in LAPI's persistent DB. Any init re-run for an already-known pod name
# (kubelet restart, node reboot) dies with
# 403 Forbidden: user '<pod>' already exist
# and the DaemonSet pod sticks in Init forever. Every DS restart also
# leaves an orphan machine row that is never cleaned.
#
# Design (name-independent):
# * Agent identity is a STATIC machine `crowdsec-agent-workstation`
# whose password lives in Secret `crowdsec-agent-credentials`
# (created once, manually - like all other secrets in this repo).
# The secret is mounted into agent pods at
# /tmp_config/local_api_credentials.yaml (see extraVolumeMounts in
# crowdsec-values.yaml), which is exactly the path the agent's main
# container copies into place at startup.
# * The DS init command is patched (strategic merge, by container name)
# to SKIP registration when that file exists, keeping the legacy
# register path only as fallback. Detection marker in the patched
# command: `[ -s /tmp_config`.
# * This CronJob enforces the desired state hourly, so recovery is
# automatic even after `helm upgrade` reverts the DS patch or the
# LAPI database is wiped:
# 1. patch DS init if it still has the unconditional register
# (no-op otherwise - no restart churn);
# 2. prune machines with no heartbeat for 2h (orphan hygiene);
# 3. ensure the static machine exists, recreating it with the
# Secret password if missing (agent retry loops reconnect
# on their own - same name + same password);
# 4. prune bouncer entries idle for 30d.
#
# Manual apply (crowdsec/k8s is NOT managed by deploy.yaml):
# kubectl apply -f crowdsec/k8s/janitor-cronjob.yaml
# Force a run:
# kubectl create job -n crowdsec --from=cronjob/crowdsec-janitor janitor-now
#
# Helm upgrades: the janitor's strategic patch puts the DS field under
# the `kubectl-patch` field manager, so a plain `helm upgrade` FAILS
# with an SSA conflict on initContainers[].command. Procedure:
# 1. revert init to chart state (kills the conflict):
# helm template crowdsec crowdsec/crowdsec --version <ver> \
# -n crowdsec -f crowdsec/k8s/crowdsec-values.yaml > /tmp/r.yaml
# python3 -c "import yaml,json; ..." # build revert patch from
# the rendered DaemonSet init command, then
# kubectl patch ds crowdsec-agent -n crowdsec \
# --type strategic -p "\$(cat /tmp/revert_patch.json)"
# 2. helm upgrade --install crowdsec ... (no --force needed)
# 3. janitor-now right away (upgrade reverts init; new pods would
# sit in Init until the next hourly run otherwise).
#
# One-time bootstrap (order matters):
# 1. Create Secret + static machine (see commands in chat).
# 2. Apply this file, trigger janitor-now, wait for agent 1/1.
# 3. One-time orphan cleanup:
# kubectl exec -n crowdsec deploy/crowdsec-lapi -- \
# cscli machines prune --duration 1h --force
# 4. Only then `helm upgrade` crowdsec with the extraVolumes values.
# Upgrade reverts the DS patch; trigger janitor-now right after it
# (otherwise new pods sit in Init until the next hourly run, then
# self-heal anyway).
#
# Password rotation: update the Secret, delete the machine
# (`cscli machines delete crowdsec-agent-workstation`), trigger
# janitor-now (recreates it), then `kubectl rollout restart
# ds/crowdsec-agent -n crowdsec` (agent reads the file at startup only).
apiVersion: v1
kind: ServiceAccount
metadata:
name: crowdsec-janitor
namespace: crowdsec
labels:
app.kubernetes.io/part-of: crowdsec
---
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
name: crowdsec-janitor
namespace: crowdsec
labels:
app.kubernetes.io/part-of: crowdsec
rules:
- apiGroups: [""]
resources: ["pods"]
verbs: ["get", "list"]
- apiGroups: [""]
resources: ["pods/exec"]
verbs: ["create"]
- apiGroups: ["apps"]
resources: ["daemonsets"]
verbs: ["get", "patch"]
# `kubectl exec deploy/<name>` resolves deploy -> replicaset -> pod,
# which needs read access to these (exec itself is pods/exec above).
- apiGroups: ["apps"]
resources: ["deployments", "replicasets"]
verbs: ["get", "list"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
name: crowdsec-janitor
namespace: crowdsec
labels:
app.kubernetes.io/part-of: crowdsec
subjects:
- kind: ServiceAccount
name: crowdsec-janitor
namespace: crowdsec
roleRef:
kind: Role
name: crowdsec-janitor
apiGroup: rbac.authorization.k8s.io
---
apiVersion: batch/v1
kind: CronJob
metadata:
name: crowdsec-janitor
namespace: crowdsec
labels:
app.kubernetes.io/part-of: crowdsec
spec:
schedule: "17 * * * *"
concurrencyPolicy: Forbid
successfulJobsHistoryLimit: 3
failedJobsHistoryLimit: 3
jobTemplate:
spec:
activeDeadlineSeconds: 300
template:
metadata:
labels:
app.kubernetes.io/part-of: crowdsec
spec:
serviceAccountName: crowdsec-janitor
restartPolicy: OnFailure
containers:
- name: janitor
# Same image the chart itself uses for registration jobs;
# IfNotPresent so it works while the node is offline
# (layer cached from the chart install).
image: alpine/kubectl:latest
imagePullPolicy: IfNotPresent
env:
- name: AGENT_PASSWORD
valueFrom:
secretKeyRef:
name: crowdsec-agent-credentials
key: password
command:
- /bin/sh
- -c
- |
set -eu
LAPI_EXEC="kubectl exec -n crowdsec deploy/crowdsec-lapi --"
echo "== 1. enforce patched agent init =="
CUR=$(kubectl get ds crowdsec-agent -n crowdsec \
-o jsonpath='{.spec.template.spec.initContainers[0].command[2]}')
case "$CUR" in
*'-s /tmp_config'*)
echo "init already patched"
;;
*)
echo "patching init"
WAIT='until nc "$LAPI_HOST" "$LAPI_PORT" -z'
WAIT="$WAIT; do echo waiting for lapi to start; sleep 5; done"
LINK='ln -s /staging/etc/crowdsec /etc/crowdsec'
REG='cscli lapi register --machine "$USERNAME"'
REG="$REG -u \"\$LAPI_URL\" --token \"\$REGISTRATION_TOKEN\""
CREDS=/tmp_config/local_api_credentials.yaml
CMD="$WAIT; $LINK; [ -s $CREDS ] || {"
CMD="$CMD $REG && cp"
CMD="$CMD /etc/crowdsec/local_api_credentials.yaml $CREDS; }"
ESC=$(printf '%s' "$CMD" | sed 's/"/\\"/g')
PATCH='{"spec":{"template":{"spec":{"initContainers":'
PATCH=$PATCH'[{"name":"wait-for-lapi-and-register",'
PATCH=$PATCH'"command":["sh","-c","'$ESC'"]}]}}}}'
kubectl patch ds crowdsec-agent -n crowdsec \
--type strategic -p "$PATCH"
;;
esac
echo "== 2. prune orphan machines (no heartbeat for 2h) =="
$LAPI_EXEC cscli machines prune --duration 2h --force
echo "== 3. ensure static machine exists =="
if $LAPI_EXEC cscli machines inspect \
crowdsec-agent-workstation >/dev/null 2>&1; then
echo "static machine present"
else
echo "recreating static machine"
$LAPI_EXEC cscli machines add crowdsec-agent-workstation \
--password "$AGENT_PASSWORD" --force
fi
echo "== 4. prune stale bouncers (no pull for 30d) =="
$LAPI_EXEC cscli bouncers prune -d 720h --force
crowdsec/k8s/network-policy.yaml
+7
View File
@@ -25,3 +25,10 @@ spec:
ports:
- protocol: TCP
port: 8080
- from:
- namespaceSelector:
matchLabels:
kubernetes.io/metadata.name: prometheus
ports:
- protocol: TCP
port: 6060