87 lines
2.6 KiB
ReStructuredText
87 lines
2.6 KiB
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=====================
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Develop with minikube
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=====================
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Minikube is a tool to quickly provision a local Kubernetes cluster on many
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platforms. It can be used to test and develop cert-manager. This guide will
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walk you through getting started using Minikube for development.
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Start minikube
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==============
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First, run minikube, and configure your local kubectl command to work with minikube; minikube typically does this automatically.
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.. code-block:: shell
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# Check your locally installed minikube version
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$ minikube version
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minikube version: v0.25.0
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# Start a local cluster
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$ minikube start --extra-config=apiserver.Authorization.Mode=RBAC
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# Verify it works. This should output a local apiserver IP
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$ kubectl cluster-info
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# Create a cluster role binding so Tiller has cluster-admin access rights
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$ kubectl create clusterrolebinding default-admin --clusterrole=cluster-admin --serviceaccount=kube-system:default
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# Install helm
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$ helm init
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Install local development tools
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===============================
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You will need the following tools to build cert-manager:
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* `Bazel <https://docs.bazel.build/versions/master/install.html>`
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* `Docker <https://store.docker.com/search?type=edition&offering=community>` (and enable for non-root user)
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These instructions have only been tested on Linux; Windows and MacOS may
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require further changes.
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Build a dev version of cert-manager
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===================================
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.. code-block:: shell
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# Configure your local docker client to use the minikube docker daemon
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$ eval "$(minikube docker-env)"
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# Build cert-manager binaries and docker images. Full output omitted for brevity
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$ make build
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Successfully tagged quay.io/jetstack/cert-manager-controller:build
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Deploy that version with helm
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=============================
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.. code-block:: shell
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# Install our freshly built cert-manager image
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$ helm install \
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--set image.tag=build \
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--set image.pullPolicy=Never \
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--name cert-manager \
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./contrib/charts/cert-manager
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From here, you should be able to do whatever manual testing or development you wish to.
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Deploy a new version
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====================
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In general, upgrading can be done simply by running `make build`, and then deleting the deployed pod using `kubectl delete pod`.
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However, if you make changes to the helm chart or wish to change the controller's arguments, such as to change the logging level, you may also update it with the following:
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.. code-block:: shell
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helm upgrade \
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cert-manager \
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--reuse-values \
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--set extraArgs="{-v=5}"
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--set image.tag=build
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./contrib/charts/cert-manager
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