titan-iac/services/keycloak/mas-secrets-ensure-job.yaml

# services/keycloak/mas-secrets-ensure-job.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: mas-secrets-ensure
  namespace: sso
---
apiVersion: batch/v1
kind: Job
metadata:
  name: mas-secrets-ensure-3
  namespace: sso
spec:
  backoffLimit: 2
  template:
    spec:
      serviceAccountName: mas-secrets-ensure
      restartPolicy: OnFailure
      volumes:
        - name: work
          emptyDir: {}
      initContainers:
        - name: generate
          image: alpine:3.20
          command: ["/bin/sh", "-c"]
          args:
            - |
              set -euo pipefail
              umask 077
              apk add --no-cache curl openssl jq >/dev/null

              KC_URL="http://keycloak.sso.svc.cluster.local"
              ACCESS_TOKEN=""
              for attempt in 1 2 3 4 5; do
                TOKEN_JSON="$(curl -sS -X POST "$KC_URL/realms/master/protocol/openid-connect/token" \
                  -H 'Content-Type: application/x-www-form-urlencoded' \
                  -d "grant_type=password" \
                  -d "client_id=admin-cli" \
                  -d "username=${KEYCLOAK_ADMIN}" \
                  -d "password=${KEYCLOAK_ADMIN_PASSWORD}" || true)"
                ACCESS_TOKEN="$(echo "$TOKEN_JSON" | jq -r '.access_token' 2>/dev/null || true)"
                if [ -n "$ACCESS_TOKEN" ] && [ "$ACCESS_TOKEN" != "null" ]; then
                  break
                fi
                echo "Keycloak token request failed (attempt ${attempt})" >&2
                sleep $((attempt * 2))
              done
              if [ -z "$ACCESS_TOKEN" ] || [ "$ACCESS_TOKEN" = "null" ]; then
                echo "Failed to fetch Keycloak admin token" >&2
                exit 1
              fi
              CLIENT_ID="$(curl -sS -H "Authorization: Bearer ${ACCESS_TOKEN}" \
                "$KC_URL/admin/realms/atlas/clients?clientId=othrys-mas" | jq -r '.[0].id' 2>/dev/null || true)"
              if [ -z "$CLIENT_ID" ] || [ "$CLIENT_ID" = "null" ]; then
                echo "Keycloak client othrys-mas not found" >&2
                exit 1
              fi
              CLIENT_SECRET="$(curl -sS -H "Authorization: Bearer ${ACCESS_TOKEN}" \
                "$KC_URL/admin/realms/atlas/clients/${CLIENT_ID}/client-secret" | jq -r '.value' 2>/dev/null || true)"
              if [ -z "$CLIENT_SECRET" ] || [ "$CLIENT_SECRET" = "null" ]; then
                echo "Keycloak client secret not found" >&2
                exit 1
              fi

              printf '%s' "$CLIENT_SECRET" > /work/keycloak_client_secret
              openssl rand -base64 32 > /work/encryption
              openssl rand -hex 32 > /work/matrix_shared_secret
              openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:4096 -out /work/rsa_key >/dev/null 2>&1
              chmod 0600 /work/*
          env:
            - name: KEYCLOAK_ADMIN
              valueFrom:
                secretKeyRef:
                  name: keycloak-admin
                  key: username
            - name: KEYCLOAK_ADMIN_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: keycloak-admin
                  key: password
          volumeMounts:
            - name: work
              mountPath: /work
      containers:
        - name: apply
          image: bitnami/kubectl:latest
          command: ["/bin/sh", "-c"]
          args:
            - |
              set -euo pipefail
              if kubectl -n comms get secret mas-secrets-runtime >/dev/null 2>&1; then
                exit 0
              fi
              kubectl -n comms create secret generic mas-secrets-runtime \
                --from-file=encryption=/work/encryption \
                --from-file=matrix_shared_secret=/work/matrix_shared_secret \
                --from-file=keycloak_client_secret=/work/keycloak_client_secret \
                --from-file=rsa_key=/work/rsa_key >/dev/null
          volumeMounts:
            - name: work
              mountPath: /work