microk8s activemq descriptors

activemq.yml

---
apiVersion: apps/v1
kind: Deployment
metadata:
   labels:
      app: activemq
   name: activemq
spec:
  replicas: 1
  selector:
    matchLabels:
       app: activemq
  template:
    metadata:
       labels:
         app: activemq
    spec:
      containers:
      - name: activemq
        image: lewinc/activemq:latest-liberica-alpine
        imagePullPolicy: Always
        env:
          - name: ACTIVEMQ_OPTS
            value: "-Djetty.host=0.0.0.0"
        resources:
          limits:
            cpu: 400m
            memory: "512M"
          requests:
            cpu: 200m
            memory: "256M"
        ports:
         - containerPort: 8161
         - containerPort: 61616
         - containerPort: 5672
      imagePullSecrets:
      - name: dockerhub
---
apiVersion: v1
kind: Service
metadata:
  name: activemq
  labels:
    app: activemq
spec:
  selector:
    app: activemq
  ports:
  - name: dashboard
    port: 8161
    targetPort: 8161
    protocol: TCP
  - name: openwire
    port: 61616
    targetPort: 61616
    protocol: TCP
  - name: amqp
    port: 5672
    targetPort: 5672
    protocol: TCP
  type: ClusterIP
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: activemq-admin-ingress
  labels:
    app: activemq
spec:
  ingressClassName: public
  rules:
    - host: activemq.microk8s.local
      http:
        paths:
          - path: /
            pathType: ImplementationSpecific
            backend:
              service:
                name: activemq
                port:
                  number: 8161

bash_profile_aliases

mk8s() {
  local action=$1
  case "$action" in
    start )
      multipass start microk8s-vm
      microk8s start
      microk8s config > $HOME/AppData/Local/MicroK8s/config
      mk8s_host=$(multipass info microk8s-vm | grep IPv4 | awk '{ print $2}')
      # This does mean we get the secure desktop yes/no prompt.
      sudo $HOME/bin/microk8s-hosts.ps1 -ip "$mk8s_host"
      ;;
    config )
      microk8s config > $HOME/AppData/Local/MicroK8s/config
      ;;
    hosts )
      mk8s_host=$(multipass info microk8s-vm | grep IPv4 | awk '{ print $2}')
      # This does mean we get the secure desktop yes/no prompt.
      sudo $HOME/bin/microk8s-hosts.ps1 -ip "$mk8s_host"
      ;;
    token )
      # Gives you the token for the dashboard
      ## using get secret + go template would be better but falls foul of blog templating...
      microk8s kubectl -n kube-system get secret $(microk8s kubectl -n kube-system get sa/default -o jsonpath="{.secrets[0].name}") -o go-template="{{.data.token | base64decode}}"
      ;;
    info )
      microk8s kubectl describe node microk8s-vm
      ;;
    ip )
      # jq + tr or grep + awk...
      # multipass info microk8s-vm --format json | jq '.info."microk8s-vm".ipv4[0]' | tr -d '"'
      multipass info microk8s-vm | grep IPv4 | awk '{ print $2}'
      ;;
    dashboard )
      # Starts chrome
      local ip=$(multipass info microk8s-vm | grep IPv4 | awk '{ print $2 }')
      local port=$(microk8s kubectl -n kube-system get services -l k8s-app=kubernetes-dashboard --no-headers=true -o custom-columns="Port:.spec.ports[0].nodePort")
      # local port=$(microk8s kubectl -n kube-system get services -l k8s-app=kubernetes-dashboard --no-headers=true | awk '{ print $5 }' | awk -F: '{ print $2 }' | awk -F"/" '{ print $1 }')
      start chrome --ignore-certificate-errors --incognito -new-tab "https://$ip:$port"
      ;;
    *)
      microk8s $@
      ;;
  esac
}
alias mkctl='microk8s kubectl'
# because you want to run telnet from within the K8S cluster - https://github.com/mcwarman/k8s-jump-box
alias k8ssh='winpty microk8s kubectl run jump-box --image=ghcr.io/mcwarman/k8s-jump-box:1 -i -t --image-pull-policy=Always --restart=Never --rm'

elasticsearch-helm-values.yml

---
clusterName: "elasticsearch"
nodeGroup: "master"
roles:
  master: "true"
  ingest: "true"
  data: "true"
replicas: 1

# Disable privileged init Container creation.
sysctlInitContainer:
  enabled: false

# Restrict the use of the memory-mapping when sysctlInitContainer is disabled.
esConfig:
  elasticsearch.yml: |
    node.store.allow_mmap: false

# Permit co-located instances for solitary minikube virtual machines.
antiAffinity: "soft"

# Shrink default JVM heap.
esJavaOpts: "-Xmx1568m -Xms1568m"

# Allocate smaller chunks of memory per pod.
resources:
  requests:
    cpu: "100m"
    memory: "2Gi"
  limits:
    cpu: "1000m"
    memory: "2Gi"

# Request smaller persistent volumes.
volumeClaimTemplate:
  accessModes: [ "ReadWriteOnce" ]
  storageClassName: "microk8s-hostpath"
  resources:
    requests:
      storage: 100M

ingress:
  enabled: true
  className: "public"
  pathtype: ImplementationSpecific
  hosts:
    - host: elasticsearch.microk8s.local
      paths:
        - path: /

kibana-helm-values.yml

---
ingress:
  enabled: true
  className: public
  hosts:
    - host: kibana.microk8s.local
      paths:
        - path: /
resources:
  requests:
    cpu: "100m"
    memory: "1Gi"
  limits:
    cpu: "1000m"
    memory: "2Gi"

microk8s-hosts.ps1

param([string]$ip = "127.0.0.1")
# Adds entry to the hosts file.
# Requires -RunAsAdministrator

$hostsFilePath = "$($Env:WinDir)\system32\Drivers\etc\hosts"
$hostsFile = Get-Content $hostsFilePath

$toBeAdded="microk8s.local registry.microk8s.local kibana.microk8s.local activemq.microk8s.local elasticsearch.microk8s.local"
$existing = "microk8s.local"

Write-Host "Removing $existing from hosts file" -ForegroundColor Gray
$escapedHostname = [Regex]::Escape($existing)
If (($hostsFile) -match ".*\s+$escapedHostname.*")  {
  Write-Host "$Hostname - removing from hosts file... " -ForegroundColor Yellow
  $hostsFile -notmatch ".*\s+$escapedHostname.*" | Out-File $hostsFilePath
}

Write-Host "Adding $ip for microk8s to hosts file" -ForegroundColor Gray
Add-Content -Encoding UTF8  $hostsFilePath ("$ip".PadRight(20, " ") + "$toBeAdded")
Write-Host "done"

nginx-ingress-controller.jsonpatch

[
  {"op": "add", "path": "/spec/template/spec/containers/0/ports/-", "value":{"name":"activemq-61616","containerPort":61616,"hostPort":61616,"protocol":"TCP"}},
  {"op": "add", "path": "/spec/template/spec/containers/0/ports/-", "value":{"name":"activemq-5672","containerPort":5672,"hostPort":5672,"protocol":"TCP"}}
]

nginx-tcp-configmap-patch.yml

data:
  5672: "quotidian-ennui/activemq:5672"
  61616: "quotidian-ennui/activemq:61616"