Kubernetes Operator SDK - CloudCommandos/JohnChan GitHub Wiki

This guide walks you through the steps required to set up Kubernetes Operator SDK.

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Install Dependencies

Install Golang

wget https://dl.google.com/go/go1.12.8.linux-amd64.tar.gz
tar -C $HOME -xzf go1.12.8.linux-amd64.tar.gz

Modify environment variables using your user's '.profile'

mkdir -p $HOME/goproj/src
nano $HOME/.profile
#  export GOPATH=$HOME/goproj
#  export GOROOT=$HOME/go
#  export PATH=$PATH:$(/root/go/bin/go env GOPATH)/bin

Install Dep

curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh

Clone Kubernetes Operator SDK Repository

mkdir -p $GOPATH/src/github.com/operator-framework
git clone https://github.com/operator-framework/operator-sdk $GOPATH/src/github.com/operator-framework/operator-sdk
cd $GOPATH/src/github.com/operator-framework/operator-sdk
make install

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Create a New Operator

Create new project

cd $GOPATH/src
export GO111MODULE=on   #or make permanent with echo 'export GO111MODULE=on' >> $HOME/.profile
operator-sdk new your-operator-project-name

operator-sdk add api --api-version=example.com/v1alpha1 --kind=Examplekind
operator-sdk add controller --api-version=example.com/v1alpha1 --kind=Examplekind

Before you build your operator, run these

operator-sdk generate k8s
operator-sdk generate openapi

Build your operator

cd $GOPATH/src/your-operator-project-name
go mod vendor
operator-sdk build repository-name/image-name:image-version

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DEBUG
If your building process runs into errors, the following are some fixes:

files under contrib.go.opencensus.io/exporter/ocagent refer to https://github.com/census-ecosystem/opencensus-go-exporter-ocagent for the latest version.