Gist for blogpost - https://www.robustperception.io/openshift-and-prometheus/

config.yaml

apiVersion: v1
kind: DeploymentConfig
metadata:
  name: prometheus
  namespace: myproject
  selfLink: /oapi/v1/namespaces/myproject/deploymentconfigs/prometheus
  uid: f3524153-1ab0-11e7-926b-ce8a898d4953
  resourceVersion: '1219'
  generation: 5
  creationTimestamp: '2017-04-06T10:08:15Z'
  labels:
    app: prometheus
  annotations:
    openshift.io/generated-by: OpenShiftNewApp
spec:
  strategy:
    type: Rolling
    rollingParams:
      updatePeriodSeconds: 1
      intervalSeconds: 1
      timeoutSeconds: 600
      maxUnavailable: 25%
      maxSurge: 25%
    resources: {}
  triggers:
    - type: ConfigChange
    - type: ImageChange
      imageChangeParams:
        automatic: true
        containerNames:
          - prometheus
        from:
          kind: ImageStreamTag
          namespace: myproject
          name: 'prometheus:latest'
        lastTriggeredImage: >-
          prom/prometheus@sha256:06d9e878fbca272c5f55ebc2863694b5076ff01f810c6d187767cd53891ba453
  replicas: 1
  test: false
  selector:
    app: prometheus
    deploymentconfig: prometheus
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: prometheus
        deploymentconfig: prometheus
      annotations:
        openshift.io/container.prometheus.image.entrypoint: >-
          ["/bin/prometheus","-config.file=/etc/prometheus/prometheus.yml","-storage.local.path=/prometheus","-web.console.libraries=/usr/share/prometheus/console_libraries","-web.console.templates=/usr/share/prometheus/consoles"]
        openshift.io/generated-by: OpenShiftNewApp
    spec:
      volumes:
        - name: prometheus-volume-1
          emptyDir: {}
        - name: prom-config-example-volume
          configMap:
            name: prom-config-example
            defaultMode: 420
      containers:
        - name: prometheus
          image: >-
            prom/prometheus@sha256:06d9e878fbca272c5f55ebc2863694b5076ff01f810c6d187767cd53891ba453
          ports:
            - containerPort: 9090
              protocol: TCP
          resources: {}
          volumeMounts:
            - name: prometheus-volume-1
              mountPath: /prometheus
            - name: prom-config-example-volume
              mountPath: /etc/prometheus/
          terminationMessagePath: /dev/termination-log
          imagePullPolicy: Always
      restartPolicy: Always
      terminationGracePeriodSeconds: 30
      dnsPolicy: ClusterFirst
      securityContext: {}
status:
  latestVersion: 3
  observedGeneration: 5
  replicas: 1
  updatedReplicas: 1
  availableReplicas: 1
  details:
    message: config change
    causes:
      - type: ConfigChange
  conditions:
    - type: Available
      status: 'True'
      lastTransitionTime: '2017-04-06T10:23:23Z'
      message: Deployment config has minimum availability.
    - type: Progressing
      status: 'True'
      lastTransitionTime: '2017-04-06T10:23:24Z'
      reason: NewReplicationControllerAvailable
      message: Replication controller "prometheus-3" has completed progressing