GitOps with Flux v2¶
Gitops is a way to do Kubernetes application delivery. It works by using Git as a single source of truth for Kubernetes resources and everything else. With Git at the center of your delivery pipelines, you and your team can make pull requests to accelerate and simplify application deployments and operations tasks to Kubernetes.
Installing Flux v2 (GitOps Toolkit)¶
Starting with version
eksctl provides the option to bootstrap Flux v2 components into an EKS cluster, with the
enable flux subcommand.
eksctl enable flux --config-file <config-file>
enable flux command will shell out to the
flux binary and run the
flux bootstrap command against the cluster.
In order to allow users to specify whichever
bootstrap flags they like, the
eksctl API exposes an arbitrary
flags. To find out which flags you need to bootstrap your cluster, simply run
flux bootstrap --help.
--- apiVersion: eksctl.io/v1alpha5 kind: ClusterConfig metadata: name: cluster-12 region: eu-north-1 # other cluster config ... gitops: flux: gitProvider: github # required. options are github, gitlab or git flags: # required. arbitrary map[string]string for all flux args. owner: "dr-who" repository: "our-org-gitops-repo" private: "true" branch: "main" namespace: "flux-system" path: "clusters/cluster-12" team: "team1,team2"
This example configuration can be found here.
Flux v2 configuration can only be provided via configuration file; no flags are exposed on this subcommand other than
Flux will install default toolkit components to the cluster, unless told otherwise by your configuration:
kubectl get pods --namespace flux-system NAME READY STATUS RESTARTS AGE helm-controller-7cfb98d895-zmmfc 1/1 Running 0 3m30s kustomize-controller-557986cf44-2jwjh 1/1 Running 0 3m35s notification-controller-65694dc94d-rhbxk 1/1 Running 0 3m20s source-controller-7f856877cf-jgwdk 1/1 Running 0 3m39s
For instructions on how to use your newly installed Gitops Toolkit, refer to the official docs.
Bootstrap after cluster create¶
You can have your cluster bootstrapped immediately following a cluster create by including your Flux configuration in your config file and running:
eksctl create cluster --config-file <config-file>
eksctl enable flux, ensure that you have read the Flux getting started docs. If you are using Github or Gitlab as your git provider, either
GITLAB_TOKEN must be exported with your Personal Access Token in your session. Please refer to the Flux docs for any other requirements.
Eksctl requires a minimum Flux version of
Quickstart profiles will not be supported with Flux v2.
To learn more about gitops and Flux, check out Flux official webpage.
For Enterprise support with SLA guarantees for open source Flux and eksctl explore Weave GitOps Assured.
For a trusted, fleet-scale commercial GitOps automation solution explore Weave GitOps Enterprise.