Get The Environment Up And Running

vagrant up --provision

Login To Follow Flux Installation

vagrant ssh k3s1.devel

Install flux

Adding CRD Description

helm repo add fluxcd https://fluxcd.github.io/flux
kubectl apply -f https://raw.githubusercontent.com/fluxcd/flux/master/deploy-helm/flux-helm-release-crd.yaml

Adding A Repository Controlled By Flux

cat << EOF > flux-get-started.sh
helm upgrade -i flux \
--set helmOperator.create=true \
--set helmOperator.createCRD=false \
--set [email protected]:manuelkasiske/flux-example-project \
--namespace flux \
fluxcd/flux
EOF
chmod +x flux-get-started.sh

Watch Flux Pods

kubectl -n flux get pods

install fluxctl

curl -SsL -o /usr/local/bin/fluxctl https://github.com/fluxcd/flux/releases/download/1.13.2/fluxctl_linux_amd64
chmod +x /usr/local/bin/fluxctl
echo "export FLUX_FORWARD_NAMESPACE=flux" >> /root/.bashrc
source /root/.bashrc

List The Workloads

fluxctl list-workloads --all-namespaces

Create Access To Example Git Repository By Creating An Access Key

fluxctl identity --k8s-fwd-ns flux

Apply this key as git access key for example repository!

Wait a few minute to get it synched automatically - or just type

fluxctl sync

To find out which workloads are managed by flux run:

fluxctl list-workloads -a

To find out which images are available for podinfo run:

fluxctl list-images -w demo:deployment/podinfo

To upgrade the version of podinfo to 1.4 type

fluxctl policy -w demo:deployment/podinfo --tag-all='1.4.*'

At this point flux will upgrade the version in the deployment yaml file and will automatically run the deployment.

If a release doesn't work, we can lock it by:

fluxctl lock -w demo:deployment/podinfo -m "1.4.2 does not work for us"

After that we can rollback to an older version by:

fluxctl release --force --workload demo:deployment/podinfo -i stefanprodan/podinfo:1.4.1

To see, what flux is doing just type:

kubectl logs -n default deploy/flux -f

Sources

[https://github.com/fluxcd/flux-get-started] [https://github.com/fluxcd/flux] [https://github.com/fluxcd/flux/releases/tag/1.13.2] [https://github.com/fluxcd/flux/blob/master/site/fluxctl.md#linux] [https://github.com/fluxcd/flux/blob/master/site/annotations-tutorial.md] [https://github.com/fluxcd/flux/blob/master/site/helm-get-started.md]