argo-workflows

prepare

1. k8s is ready
2. argocd is ready and logged in
3. ingress is ready
4. cert-manager is ready
   • the clusterissuer named self-signed-ca-issuer is ready

installation

1. prepare argo-workflows.yaml

   • apiVersion: argoproj.io/v1alpha1
     kind: Application
     metadata:
       name: argo-workflows
     spec:
       syncPolicy:
         syncOptions:
         - CreateNamespace=true
       project: default
       source:
         repoURL: https://argoproj.github.io/argo-helm
         chart: argo-workflows
         targetRevision: 0.40.11
         helm:
           releaseName: argo-workflows
           values: |
             crds:
               install: true
               keep: false
             singleNamespace: false
             controller:
               image:
                 registry: quay.io
               workflowNamespaces:
                 - business-workflows
             executor:
               image:
                 registry: quay.io
             workflow:
               serviceAccount:
                 create: true
               rbac:
                 create: true
             server:
               enabled: true
               image:
                 registry: quay.io
               ingress:
                 enabled: true
                 ingressClassName: nginx
                 annotations:
                   cert-manager.io/cluster-issuer: self-signed-ca-issuer
                   nginx.ingress.kubernetes.io/rewrite-target: /$1
                 hosts:
                   - argo-workflows.dev.geekcity.tech
                 paths:
                   - /?(.*)
                 tls:
                   - secretName: argo-workflows-tls
                     hosts:
                       - argo-workflows.dev.geekcity.tech
               authModes:
                 - server
               sso:
                 enabled: false
       destination:
         server: https://kubernetes.default.svc
         namespace: workflows
     
     

2. prepare argo workflow client binary

   • MIRROR="files."
     VERSION=v3.5.4
     curl -sSLo argo-linux-amd64.gz "https://${MIRROR}github.com/argoproj/argo-workflows/releases/download/${VERSION}/argo-linux-amd64.gz"
     gunzip argo-linux-amd64.gz
     chmod u+x argo-linux-amd64
     mkdir -p ${HOME}/bin
     mv -f argo-linux-amd64 ${HOME}/bin/argo
     rm -f argo-linux-amd64.gz
     
     

3. create business-workflows namespace to be controlled
   • NOTE: this should be set with controller.workflowNamespaces in the values of argo-workflows.yaml

   • kubectl get namespace business-workflows > /dev/null 2>&1 || kubectl create namespace business-workflows
     

4. apply to k8s

   • kubectl -n argocd apply -f argo-workflows.yaml
     

5. sync by argocd

   • argocd app sync argocd/argo-workflows
     

tests

hello world

1. prepare hello-world.yaml

   • apiVersion: argoproj.io/v1alpha1
     kind: Workflow
     metadata:
       generateName: hello-world-
     spec:
       entrypoint: whalesay
       serviceAccountName: argo-workflow
       templates:
       - name: whalesay
         container:
           image: docker.io/docker/whalesay:latest
           command:
           - cowsay
           args:
           - hello world
     
     

2. submit with argo workflow client

   • argo -n business-workflows submit hello-world.yaml
     

3. check status

   • argo -n business-workflows list
     

   • # argo -n business-workflows get hello-world-m5kqf
     argo -n business-workflows get @lastest
     

   • # argo -n business-workflows logs hello-world-m5kqf
     argo -n business-workflows logs @latest
     

others

1. publish container image
2. deploy argocd app
3. mirror container image