demo-appdev/k8s/vm-database.yaml

apiVersion: v1
kind: Secret
metadata:
  name: database-cloudinit
type: Opaque
stringData:
  userData: |
    #cloud-config

    users:
    - name: nicolas
      gecos: Nicolas MASSE
      groups: wheel
      lock_passwd: false
      passwd: $6$XUTB20jVVXIqh78k$L1A9Lft5JlbOtNbeDP.fOZ5giLl09LfJGGCon5uwtsIhPJoNkj4SIk08Rb6vSowOps2ik5tlUwT2ZOZ6jjr7.0
      ssh_authorized_keys:
      - ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPR1tt58X0+vbvsCR12gMAqr+g7vjt1Fx/qqz9EiboIs nicolas@localhost.localdomain
      - ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFW62WJXI1ZCMfNA4w0dMpL0fsldhbEfULNGIUB0nQui nmasse@localhost.localdomain

    write_files:
    - path: /etc/sudoers
      content: |
        Defaults   !visiblepw
        Defaults    always_set_home
        Defaults    match_group_by_gid
        Defaults    always_query_group_plugin
        Defaults    env_reset
        Defaults    env_keep =  "COLORS DISPLAY HOSTNAME HISTSIZE KDEDIR LS_COLORS"
        Defaults    env_keep += "MAIL QTDIR USERNAME LANG LC_ADDRESS LC_CTYPE"
        Defaults    env_keep += "LC_COLLATE LC_IDENTIFICATION LC_MEASUREMENT LC_MESSAGES"
        Defaults    env_keep += "LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER LC_TELEPHONE"
        Defaults    env_keep += "LC_TIME LC_ALL LANGUAGE LINGUAS _XKB_CHARSET XAUTHORITY"
        Defaults    secure_path = /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/var/lib/snapd/snap/bin
        root    ALL=(ALL)       ALL
        %wheel  ALL=(ALL)       NOPASSWD: ALL
        #includedir /etc/sudoers.d
      permissions: '0440'
      append: false

    - path: /root/bootstrap.sh
      content: |
        #!/bin/bash
        set -Eeuo pipefail
        PGSETUP_INITDB_OPTIONS=--auth-host=scram-sha-256 postgresql-setup --initdb --unit postgresql
        sed -i.bak -E "s/^#*\s*listen_addresses\s*=\s*'[^']*'/listen_addresses = '0.0.0.0'/" /var/lib/pgsql/data/postgresql.conf
        cat >> /var/lib/pgsql/data/pg_hba.conf <<EOF
        host    all             all             0.0.0.0/0               scram-sha-256
        EOF
        systemctl start postgresql.service
        systemctl enable postgresql.service
        cd /tmp
        sudo -u postgres psql -c "CREATE USER appli WITH ENCRYPTED PASSWORD 'secret'"
        sudo -u postgres psql -c "CREATE DATABASE appli OWNER 'appli';"
      permissions: '0755'

    packages:
    - postgresql-server

    runcmd:
    - [ "/root/bootstrap.sh" ]    
---
apiVersion: kubevirt.io/v1
kind: VirtualMachine
metadata:
  annotations:
    argocd.argoproj.io/sync-wave: "2"
  labels:
    app: database
  name: database
spec:
  dataVolumeTemplates:
    - apiVersion: cdi.kubevirt.io/v1beta1
      kind: DataVolume
      metadata:
        creationTimestamp: null
        name: database
      spec:
        source:
          http:
            url: https://download.fedoraproject.org/pub/fedora/linux/releases/36/Cloud/x86_64/images/Fedora-Cloud-Base-36-1.5.x86_64.qcow2
        pvc:
          accessModes:
          - ReadWriteOnce
          resources:
            requests:
              storage: 6Gi
  runStrategy: Always
  template:
    metadata:
      annotations:
        vm.kubevirt.io/flavor: small
        vm.kubevirt.io/os: fedora
        vm.kubevirt.io/workload: server
      creationTimestamp: null
      labels:
        kubevirt.io/domain: database
        kubevirt.io/size: small
    spec:
      domain:
        cpu:
          cores: 2
          sockets: 1
          threads: 1
        devices:
          disks:
            - disk:
                bus: virtio
              name: rootdisk
            - disk:
                bus: virtio
              name: cloudinitdisk
          interfaces:
            - macAddress: '02:cd:c9:00:00:00'
              masquerade: {}
              name: default
          networkInterfaceMultiqueue: true
          rng: {}
        features:
          acpi: {}
          smm:
            enabled: true
        firmware:
          bootloader:
            efi: {}
        machine:
          type: pc-q35-rhel8.4.0
        resources:
          requests:
            memory: 2Gi
      evictionStrategy: LiveMigrate
      networks:
        - name: default
          pod: {}
      terminationGracePeriodSeconds: 180
      volumes:
        - dataVolume:
            name: database
          name: rootdisk
        - cloudInitNoCloud:
            secretRef:
              name: database-cloudinit
          name: cloudinitdisk
---
apiVersion: v1
kind: Service
metadata:
  name: database
spec:
  ports:
  - name: ssh
    port: 22
    protocol: TCP
    targetPort: 22
  - name: psql
    port: 5432
    protocol: TCP
    targetPort: 5432
  selector:
    kubevirt.io/domain: database
  type: ClusterIP