helm-charts VS helm

repositories: # https://artifacthub.io/packages/helm/dgraph/dgraph/0.0.19 - name: dgraph url: https://charts.dgraph.io # https://artifacthub.io/packages/helm/main/raw - name: bedag url: https://bedag.github.io/helm-charts/ releases: # Dgraph additional resources required to support Consul - name: dgraph-extra chart: bedag/raw namespace: dgraph version: 1.1.0 values: - resources: - apiVersion: v1 kind: ServiceAccount metadata: name: dgraph-dgraph-zero - apiVersion: v1 kind: ServiceAccount metadata: name: dgraph-dgraph-alpha - apiVersion: v1 kind: ServiceAccount metadata: name: dgraph-dgraph-alpha-grpc - apiVersion: v1 kind: Service metadata: name: dgraph-dgraph-alpha-grpc spec: ports: - name: grpc-alpha port: 9080 publishNotReadyAddresses: true selector: app: dgraph chart: dgraph-0.0.19 component: alpha release: dgraph type: ClusterIP # Dgraph cluster with 2 x StatefulSet (3 Zero pods, 3 Alpha pods) - name: dgraph namespace: dgraph chart: dgraph/dgraph version: 0.0.19 needs: - dgraph/dgraph-extra values: - image: tag: v21.03.2 zero: extraAnnotations: consul.hashicorp.com/connect-inject: 'true' # disable transparent-proxy for multi-port services consul.hashicorp.com/transparent-proxy: 'false' consul.hashicorp.com/transparent-proxy-exclude-inbound-ports: "5080,7080" consul.hashicorp.com/transparent-proxy-exclude-outbound-ports: "5080,7080" alpha: extraAnnotations: consul.hashicorp.com/connect-inject: 'true' # disable transparent-proxy for multi-port services consul.hashicorp.com/transparent-proxy: 'false' # use these registered consul services for different ports consul.hashicorp.com/connect-service: 'dgraph-dgraph-alpha,dgraph-dgraph-alpha-grpc' consul.hashicorp.com/connect-service-port: '8080,9080' consul.hashicorp.com/transparent-proxy-exclude-inbound-ports: "5080,7080" consul.hashicorp.com/transparent-proxy-exclude-outbound-ports: "5080,7080" configFile: config.yaml: | security: whitelist: {{ env "DG_ACCEPT_LIST" | default "0.0.0.0/0" | quote }} # patch existing resources using merge patches strategicMergePatches: # add serviceAccountName to Alpha StatefulSet - apiVersion: apps/v1 kind: StatefulSet metadata: name: dgraph-dgraph-alpha spec: template: spec: serviceAccountName: dgraph-dgraph-alpha # add serviceAccountName to Zero StatefulSet - apiVersion: apps/v1 kind: StatefulSet metadata: name: dgraph-dgraph-zero spec: template: spec: serviceAccountName: dgraph-dgraph-zero # add label to Alpha headless service - apiVersion: v1 kind: Service metadata: name: dgraph-dgraph-alpha-headless labels: consul.hashicorp.com/service-ignore: 'true' # add label to Zero headless service - apiVersion: v1 kind: Service metadata: name: dgraph-dgraph-zero-headless labels: consul.hashicorp.com/service-ignore: 'true' # patch existing resource using jsonPatches jsonPatches: # remove existing grpc port from serivce - target: version: v1 kind: Service name: dgraph-dgraph-alpha patch: - op: remove path: /spec/ports/1

https://github.com/helmfile/helmfile + incubator raw

Applying Kubernetes manifests individually is problematic because files can get overlooked. Packaging your applications as Helm charts lets you version your manifests and easily repeat deployments into different environments. Helm tracks the state of each deployment as a "release" in your cluster.

helm

Explanation here: https://github.com/helm/helm/issues/12681#issuecomment-19593...

Looks like it's a bug in Helm, but actually isn't Helm's fault, the issue was introduced by Fedora Linux.

Helm (Get from here https://helm.sh/)

It’s also well understood that having a k8s cluster is not enough to make developers able to host their services - you need a devops team to work with them, using tools like delivery pipelines, Helm, kustomize, infra as code, service mesh, ingress, secrets management, key management - the list goes on! Developer Portals like Backstage, Port and Cortex have started to emerge to help manage some of this complexity.

Kubernetes orchestrates deployments and manages resources through yaml configuration files. While Kubernetes supports a wide array of resources and configurations, our aim in this tutorial is to maintain simplicity. For the sake of clarity and ease of understanding, we will use yaml configurations with hardcoded values. This method simplifies the learning process but isn’t ideal for production environments due to the need for manual updates with each new deployment. Although there are methods to streamline and automate this process, such as using Helm charts or bash scripts, we’ll not delve into those techniques to keep the tutorial manageable and avoid fatigue — you might be quite tired by that point!

Helm is a package manager that automates Kubernetes applications' creation, packaging, configuration, and deployment by combining your configuration files into a single reusable package. This eliminates the requirement to create the mentioned Kubernetes resources by ourselves since they have been implemented within the Helm chart. All we need to do is configure it as needed to match our requirements. From the public Helm chart repository, we can get the charts for common software packages like Consul, Jenkins SonarQube, etc. We can also create our own Helm charts for our custom applications so that we don’t need to repeat ourselves and simplify deployments.

We can search for charts https://helm.sh/ . Charts can be pulled(downloaded) and optionally unpacked(untar).

Generally I felt as if I was diving in the deepest of waters without the correct equipement and that was horrifying. Unfortunately to me, I had to dive even deeper before getting equiped with tools like ArgoCD, and k8slens. I had to start working with... HELM.

Within the architecture of Cyclops, a central component is the Helm engine. Helm is very popular within the Kubernetes community; chances are you have already run into it. The popularity of Helm plays to Cyclops's strength because of its straightforward integration.