93 lines
2.9 KiB
YAML
93 lines
2.9 KiB
YAML
# services/hermes/node-ssh-access.yaml
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: hermes-node-ssh-access
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namespace: hermes
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labels:
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app: hermes-node-ssh-access
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---
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apiVersion: apps/v1
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kind: DaemonSet
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metadata:
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name: hermes-node-ssh-access
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namespace: hermes
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labels:
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app: hermes-node-ssh-access
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spec:
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selector:
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matchLabels:
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app: hermes-node-ssh-access
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template:
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metadata:
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labels:
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app: hermes-node-ssh-access
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annotations:
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vault.hashicorp.com/agent-inject: "true"
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vault.hashicorp.com/role: hermes-node-ssh
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vault.hashicorp.com/agent-inject-secret-node-ssh-public-key: kv/data/atlas/hermes/developer-ssh
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vault.hashicorp.com/agent-inject-template-node-ssh-public-key: |
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{{- with secret "kv/data/atlas/hermes/developer-ssh" -}}
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{{ .Data.data.public_key }}
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{{- end }}
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vault.hashicorp.com/agent-pre-populate-only: "true"
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vault.hashicorp.com/agent-init-first: "true"
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spec:
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serviceAccountName: hermes-node-ssh-access
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automountServiceAccountToken: true
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tolerations:
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- operator: Exists
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containers:
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- name: key-reconciler
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image: busybox:1.37
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imagePullPolicy: IfNotPresent
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command: [/bin/sh, -ec]
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args:
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- |
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reconcile() {
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key="$(cat /vault/secrets/node-ssh-public-key)"
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found=0
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for user in atlas oceanus; do
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home="/host-home/${user}"
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[ -d "${home}" ] || continue
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found=1
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install -d -m 0700 -o "$(stat -c %u "${home}")" -g "$(stat -c %g "${home}")" "${home}/.ssh"
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touch "${home}/.ssh/authorized_keys"
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grep -qxF "${key}" "${home}/.ssh/authorized_keys" || printf '%s\n' "${key}" >> "${home}/.ssh/authorized_keys"
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chown "$(stat -c %u "${home}"):$(stat -c %g "${home}")" "${home}/.ssh/authorized_keys"
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chmod 0600 "${home}/.ssh/authorized_keys"
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done
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[ "${found}" = 1 ] || { echo "no supported node SSH account found" >&2; return 1; }
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}
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while true; do
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reconcile
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sleep 300
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done
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securityContext:
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allowPrivilegeEscalation: false
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readOnlyRootFilesystem: true
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runAsUser: 0
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runAsGroup: 0
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seccompProfile:
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type: RuntimeDefault
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volumeMounts:
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- name: host-home
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mountPath: /host-home
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- name: tmp
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mountPath: /tmp
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resources:
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requests:
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cpu: 5m
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memory: 8Mi
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limits:
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cpu: 50m
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memory: 32Mi
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volumes:
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- name: host-home
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hostPath:
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path: /home
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type: Directory
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- name: tmp
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emptyDir:
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sizeLimit: 8Mi
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