Work In Progress
A k8s deployment and service are specified in deployment.yaml. Here, the version of the container images is {{.VERSION}}
which will later be replaced by the value of the environment variable PLUGIN_VERSION.
The executable starts deployment and service initially and updates them accordingly if the called later.
The terminal recording skip the initial part and will be replaced later.
This scenario is using or can use, respectively, the following images from docker hub:
stefanhans/webserver:1.0.0 (green)
stefanhans/webserver:1.0.1 (blue)
stefanhans/webserver:1.0.2 (yellow)
stefanhans/webserver:1.0.3 (red)
stefanhans/webserver:1.0.4 (gray)
All images are simply presenting one webpage and the versions change mainly the background color.
Prerequisites:
Go, Docker, and Kubernetes, e.g. minikube
Build your Go executable, e.g. GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -o ./update
Set the version and test (does the initial deployment)
export PLUGIN_VERSION=1.0.0
chmod +x update
./update
Edit the deployment.yaml (or don't)
Copy all files according to the Dockerfile, i.e. config, ca.crt, client.crt, client.key
Build the docker image, e.g. docker build -t stefanhans/update-via-docker:1.0.1 .
Test the docker image, e.g. docker run -e PLUGIN_VERSION="1.0.5" --rm --network="host" stefanhans/update-via-docker:1.0.1
Next steps - done:
-
Getting a running drone pipeline
👍 -
Check
--network="host"regarding drone pipeline👍