Operator Framework

Operator SDK

Download the release binary

Set platform information:

export ARCH=$(case $(uname -m) in x86_64) echo -n amd64 ;; aarch64) echo -n arm64 ;; *) echo -n $(uname -m) ;; esac)
export OS=$(uname | awk '{print tolower($0)}')

Download the binary for your platform:

export OPERATOR_SDK_DL_URL=https://github.com/operator-framework/operator-sdk/releases/download/v1.22.2
curl -LO ${OPERATOR_SDK_DL_URL}/operator-sdk_${OS}_${ARCH}

Verify the downloaded binary

Import the operator-sdk release GPG key from keyserver.ubuntu.com:

gpg --keyserver keyserver.ubuntu.com --recv-keys 052996E2A20B5C7E

Verify the signature:

curl -LO ${OPERATOR_SDK_DL_URL}/checksums.txt
curl -LO ${OPERATOR_SDK_DL_URL}/checksums.txt.asc
gpg -u "Operator SDK (release) <cncf-operator-sdk@cncf.io>" --verify checksums.txt.asc

You should see something similar:

gpg: assuming signed data in 'checksums.txt'
gpg: Signature made Fri 30 Oct 2020 12:15:15 PM PDT
gpg:                using RSA key ADE83605E945FA5A1BD8639C59E5B4762496218
gpg: Good signature from "Operator SDK (release) <cncf-operator-sdk@cncf.io>" [ultimate]

Make sure the checksums match:

grep operator-sdk_${OS}_${ARCH} checksums.txt | sha256sum -c -

You should see something similar to the following:

operator-sdk_linux_amd64: OK

Install the release binary in your PATH

chmod +x operator-sdk_${OS}_${ARCH} && sudo mv operator-sdk_${OS}_${ARCH} /usr/local/bin/operator-sdk

Bash completion

operator-sdk completion bash > /etc/bash_completion.d/operator-sdk

Install OLM

operator-sdk olm install 

Operators

Prometheus

Clone the operator from Github

git clone https://github.com/prometheus-operator/kube-prometheus.git
cd kube-prometheus

Create the namespace and CRDs, and then wait for them to be availble before creating the remaining resources

kubectl create -f manifests/setup

Wait until the "servicemonitors" CRD is created. The message "No resources found" means success in this context.

until kubectl get servicemonitors --all-namespaces ; do date; sleep 1; echo ""; done

Deploy the rest of the operator manifests

kubectl create -f manifests/