96 lines
3.1 KiB
YAML
96 lines
3.1 KiB
YAML
# services/comms/mas-admin-client-secret-ensure-job.yaml
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: mas-admin-client-secret-writer
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namespace: comms
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: Role
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metadata:
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name: mas-admin-client-secret-writer
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namespace: comms
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rules:
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- apiGroups: [""]
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resources: ["secrets"]
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resourceNames: ["mas-admin-client-runtime"]
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verbs: ["get", "patch", "update"]
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- apiGroups: [""]
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resources: ["secrets"]
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verbs: ["create"]
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: RoleBinding
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metadata:
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name: mas-admin-client-secret-writer
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namespace: comms
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: Role
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name: mas-admin-client-secret-writer
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subjects:
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- kind: ServiceAccount
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name: mas-admin-client-secret-writer
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namespace: comms
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---
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apiVersion: batch/v1
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kind: Job
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metadata:
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name: mas-admin-client-secret-ensure-8
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namespace: comms
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spec:
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backoffLimit: 2
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template:
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spec:
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serviceAccountName: mas-admin-client-secret-writer
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restartPolicy: OnFailure
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volumes:
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- name: work
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emptyDir: {}
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initContainers:
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- name: generate
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image: alpine:3.20
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command: ["/bin/sh", "-c"]
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args:
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- |
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set -euo pipefail
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umask 077
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dd if=/dev/urandom bs=32 count=1 2>/dev/null | od -An -tx1 | tr -d ' \n' > /work/client_secret
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chmod 0644 /work/client_secret
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volumeMounts:
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- name: work
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mountPath: /work
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containers:
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- name: patch
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image: registry.bstein.dev/bstein/kubectl:1.35.0
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command: ["/bin/sh", "-c"]
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args:
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- |
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set -euo pipefail
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apk add --no-cache curl jq >/dev/null
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vault_addr="${VAULT_ADDR:-http://vault.vault.svc.cluster.local:8200}"
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vault_role="${VAULT_ROLE:-comms-secrets}"
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jwt="$(cat /var/run/secrets/kubernetes.io/serviceaccount/token)"
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login_payload="$(jq -nc --arg jwt "${jwt}" --arg role "${vault_role}" '{jwt:$jwt, role:$role}')"
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vault_token="$(curl -sS --request POST --data "${login_payload}" \
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"${vault_addr}/v1/auth/kubernetes/login" | jq -r '.auth.client_token')"
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if [ -z "${vault_token}" ] || [ "${vault_token}" = "null" ]; then
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echo "vault login failed" >&2
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exit 1
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fi
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current="$(curl -sS -H "X-Vault-Token: ${vault_token}" \
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"${vault_addr}/v1/kv/data/atlas/comms/mas-admin-client-runtime" | jq -r '.data.data.client_secret // empty')"
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if [ -n "${current}" ]; then
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exit 0
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fi
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value="$(cat /work/client_secret)"
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payload="$(jq -nc --arg value "${value}" '{data:{client_secret:$value}}')"
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curl -sS -X POST -H "X-Vault-Token: ${vault_token}" \
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-d "${payload}" "${vault_addr}/v1/kv/data/atlas/comms/mas-admin-client-runtime" >/dev/null
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volumeMounts:
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- name: work
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mountPath: /work
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