flux-deployment.yaml

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: flux
spec:
  replicas: 1
  selector:
    matchLabels:
      name: flux
  strategy:
    type: Recreate
  template:
    metadata:
      annotations:
        prometheus.io.port: "3031" # tell prometheus to scrape /metrics endpoint's port.
      labels:
        name: flux
    spec:
      serviceAccount: flux
      volumes:
      - name: git-key
        secret:
          secretName: flux-git-deploy
          defaultMode: 0400 # when mounted read-only, we won't be able to chmod

      # This is a tmpfs used for generating SSH keys. In K8s >= 1.10,
      # mounted secrets are read-only, so we need a separate volume we
      # can write to.
      - name: git-keygen
        emptyDir:
          medium: Memory

      # The following volume is for using a customised known_hosts
      # file, which you will need to do if you host your own git
      # repo rather than using github or the like. You'll also need to
      # mount it into the container, below. See
      # https://github.com/weaveworks/flux/blob/master/site/standalone-setup.md#using-a-private-git-host
      # - name: ssh-config
      #   configMap:
      #     name: flux-ssh-config

      # The following volume is for using a customised .kube/config,
      # which you will need to do if you wish to have a different
      # default namespace. You will also need to provide the configmap
      # with an entry for `config`, and uncomment the volumeMount and
      # env entries below.
      # - name: kubeconfig
      #   configMap:
      #     name: flux-kubeconfig

      containers:
      - name: flux
        # There are no ":latest" images for flux. Find the most recent
        # release or image version at https://quay.io/weaveworks/flux
        # and replace the tag here.
        image: quay.io/weaveworks/flux:1.7.0
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 3030 # informational
        volumeMounts:
        - name: git-key
          mountPath: /etc/fluxd/ssh # to match location given in image's /etc/ssh/config
          readOnly: true # this will be the case perforce in K8s >=1.10
        - name: git-keygen
          mountPath: /var/fluxd/keygen # to match location given in image's /etc/ssh/config

        # Include this if you need to mount a customised known_hosts
        # file; you'll also need the volume declared above.
        # - name: ssh-config
        #   mountPath: /root/.ssh

        # Include this and the volume "kubeconfig" above, and the
        # environment entry "KUBECONFIG" below, to override the config
        # used by kuebctl.
        # - name: kubeconfig
        #   mountPath: /etc/fluxd/kube

        # Include this to point kubectl at a different config; you
        # will need to do this if you have mounted an alternate config
        # from a configmap, as in commented blocks above.
        # env:
        # - name: KUBECONFIG
        #   value: /etc/fluxd/kube/config

        args:

        # if you deployed memcached in a different namespace to flux,
        # or with a different service name, you can supply these
        # following two arguments to tell fluxd how to connect to it.
        # - --memcached-hostname=memcached.default.svc.cluster.local
        # - --memcached-service=memcached

        # this must be supplied, and be in the tmpfs (emptyDir)
        # mounted above, for K8s >= 1.10
        - --ssh-keygen-dir=/var/fluxd/keygen

        # replace or remove the following URL
        - --git-url=git@github.com:weaveworks/flux-example
        - --git-branch=master

        # include these next two to connect to an "upstream" service
        # (e.g., Weave Cloud). The token is particular to the service.
        # - --connect=wss://cloud.weave.works/api/flux
        # - --token=abc123abc123abc123abc123

        # serve /metrics endpoint at different port.
        # make sure to set prometheus' annotation to scrape the port value.
        - --listen-metrics=:3031