First check that the helm command is available and the version is v2.5.0 or newer.
$ helm version
Client: &version.Version{SemVer:"v2.5.0", GitCommit:"012cb0ac1a1b2f888144ef5a67b8dab6c2d45be6", GitTreeState:"clean"}
Server: &version.Version{SemVer:"v2.5.0", GitCommit:"012cb0ac1a1b2f888144ef5a67b8dab6c2d45be6", GitTreeState:"clean"}
Finally, initialize Helm:
helm init
Ensure the kubectl client is installed and can connect to your Kubernetes cluster.
The Drycc Chart Repository contains everything needed to install Drycc Workflow onto a Kubernetes cluster, with a single helm install drycc/workflow --namespace drycc command.
Add this repository to Helm:
$ helm repo add drycc https://charts.drycc.cc/stable
It is recommended to use a dedicated storage account for the operational aspects of Workflow, which includes storing slug and container images, database backups, and disaster recovery. This storage account is passed as parameters during the helm install command in the next step. Replace the AZURE_SA_NAME variable with a unique name for your storage account and execute these commands.
$ export AZURE_SA_NAME=YourGlobalUniqueName
$ az storage account create -n $AZURE_SA_NAME -l $AZURE_DC_LOCATION -g $AZURE_RG_NAME --sku Standard_LRS
$ export AZURE_SA_KEY=`az storage account keys list -n $AZURE_SA_NAME -g $AZURE_RG_NAME --query [0].value --output tsv`
Note: Premium Storage skus are not supported yet due to lack of block blob storage support required for the drycc database to function.
Now that Helm is installed and the repository has been added, install Workflow by running:
$ helm install drycc/workflow --namespace=drycc --set global.storage=azure,azure.accountname=$AZURE_SA_NAME,azure.accountkey=$AZURE_SA_KEY,azure.registry_container=registry,azure.database_container=database,azure.builder_container=builder
Helm will install a variety of Kubernetes resources in the drycc namespace.
Wait for the pods that Helm launched to be ready. Monitor their status by running:
$ kubectl --namespace=drycc get pods
If it's preferred to have kubectl automatically update as the pod states change, run (type Ctrl-C to stop the watch):
$ kubectl --namespace=drycc get pods -w
Depending on the order in which the Workflow components initialize, some pods may restart. This is common during the installation: if a component's dependencies are not yet available, that component will exit and Kubernetes will automatically restart it.
Here, it can be seen that the controller, builder and registry all took a few loops before they were able to start:
$ kubectl --namespace=drycc get pods
NAME READY STATUS RESTARTS AGE
drycc-builder-hy3xv 1/1 Running 5 5m
drycc-controller-g3cu8 1/1 Running 5 5m
drycc-database-rad1o 1/1 Running 0 5m
drycc-logger-fluentd-1v8uk 1/1 Running 0 5m
drycc-logger-fluentd-esm60 1/1 Running 0 5m
drycc-logger-sm8b3 1/1 Running 0 5m
drycc-minio-4ww3t 1/1 Running 0 5m
drycc-registry-asozo 1/1 Running 1 5m
Once all of the pods are in the READY state, Drycc Workflow is up and running!
Next, configure dns so you can register your first user and deploy an application.