carr.pub live: cert-manager, hello site, DDNS; monitoring + loadtest committed

2026-09-19 20:57:04 -07:00
parent 8451333c3a
commit a1ee870f67
3 changed files with 171 additions and 0 deletions
--- a/manifests/monitoring/ddns.yaml
+++ b/manifests/monitoring/ddns.yaml
@@ -0,0 +1,69 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: ddns-script
+  namespace: monitoring
+data:
+  ddns.sh: |
+    #!/bin/sh
+    # Keeps the carr.pub apex A record pointing at this network's public IP.
+    RECORD_ID=84723206
+    ZONE="carr.pub"
+    ACCOUNT=6300
+    API="https://api.dnsimple.com/v2"
+    AUTH="Authorization: Bearer ${DNSIMPLE_TOKEN}"
+
+    IP=$(curl -s -m 15 https://ifconfig.me)
+    case "$IP" in
+      *.*.*.*) : ;;
+      *) echo "no valid public ip: '$IP'"; exit 0 ;;
+    esac
+
+    CUR=$(curl -s -m 15 -H "$AUTH" "$API/$ACCOUNT/zones/$ZONE/records/$RECORD_ID" \
+      | sed -n 's/.*"content":"\([^"]*\)".*/\1/p')
+    if [ "$IP" = "$CUR" ]; then
+      echo "$(date -Is) up to date ($IP)"
+      exit 0
+    fi
+
+    RES=$(curl -s -m 15 -X PATCH -H "$AUTH" -H "Content-Type: application/json" \
+      "$API/$ACCOUNT/zones/$ZONE/records/$RECORD_ID" \
+      -d "{\"content\":\"$IP\"}")
+    echo "$(date -Is) updated carr.pub -> $IP"
+    case "$RES" in
+      *'"id"'*) exit 0 ;;
+      *) echo "API error: $RES"; exit 1 ;;
+    esac
+---
+apiVersion: batch/v1
+kind: CronJob
+metadata:
+  name: ddns-carr-pub
+  namespace: monitoring
+spec:
+  schedule: "*/5 * * * *"
+  concurrencyPolicy: Forbid
+  successfulJobsHistoryLimit: 1
+  failedJobsHistoryLimit: 3
+  jobTemplate:
+    spec:
+      backoffLimit: 1
+      template:
+        spec:
+          restartPolicy: Never
+          containers:
+            - name: ddns
+              image: curlimages/curl:8.11.1
+              command: ["/bin/sh", "/scripts/ddns.sh"]
+              env:
+                - name: DNSIMPLE_TOKEN
+                  valueFrom:
+                    secretKeyRef: {name: dnsimple-token, key: token}
+              resources:
+                requests: {cpu: 10m, memory: 16Mi}
+                limits: {memory: 32Mi}
+              volumeMounts:
+                - {name: scripts, mountPath: /scripts}
+          volumes:
+            - name: scripts
+              configMap: {name: ddns-script, defaultMode: 0744}