k8s-manifests

Set up a cluster for GitOps

NAMESPACE=bootstrap
kubectl create ns ${NAMESPACE}
kubectl create -n ${NAMESPACE} sa kapp
kubectl create clusterrolebinding kapp-cluster-admin-${NAMESPACE} --clusterrole cluster-admin --serviceaccount=${NAMESPACE}:kapp
kubectl create secret generic -n ${NAMESPACE} github --from-file=ssh-privatekey=$HOME/.ssh/kapp-controller --dry-run=client -oyaml | kubectl apply -f-
kubectl create secret generic -n ${NAMESPACE} pgp-key --from-file=$HOME/.gnupg/my.pk --dry-run=client -oyaml | kubectl apply -f-

NAMESPACE=kapp
kubectl create ns ${NAMESPACE}
kubectl create -n ${NAMESPACE} sa kapp
kubectl create clusterrolebinding kapp-cluster-admin-${NAMESPACE} --clusterrole cluster-admin --serviceaccount=${NAMESPACE}:kapp
kubectl create secret generic -n ${NAMESPACE} github --from-file=ssh-privatekey=$HOME/.ssh/id_rsa --dry-run=client -oyaml | kubectl apply -f-
kubectl create secret generic -n ${NAMESPACE} pgp-key --from-file=$HOME/.gnupg/my.pk --dry-run=client -oyaml | kubectl apply -f-

Install kapp controller

kubectl apply -f https://github.com/vmware-tanzu/carvel-kapp-controller/releases/download/v0.41.2/release.yml

Enable blog namespace

GITHUB_USERNAME=making
GITHUB_API_TOKEN=ghp_******

for NAMESPACE in $(kubectl get ns -l rbac-mgmt=managed -ojsonpath='{.items[*].metadata.name}');do
    kubectl delete secret git-basic -n ${NAMESPACE}
    kubectl create secret generic git-basic -n ${NAMESPACE} \
        --type kubernetes.io/basic-auth \
        --from-literal=username=${GITHUB_USERNAME} \
        --from-literal=password=${GITHUB_API_TOKEN} \
        --dry-run=client -oyaml \
     | kubectl apply -f- 
    kubectl -n ${NAMESPACE} annotate secret git-basic tekton.dev/git-0=https://github.com --overwrite=true   
    kubectl patch -n ${NAMESPACE} serviceaccount default -p "{\"secrets\":[{\"name\":\"git-basic\"}]}"
done

How to generate GPG keys

https://carvel.dev/kapp-controller/docs/latest/sops/

mkdir -p $HOME/.gnupg
cat <<EOF > $HOME/.gnupg/conf
%no-protection
Key-Type: 1
Key-Length: 4096
Subkey-Type: 1
Subkey-Length: 4096
Expire-Date: 0
Name-Comment: kapp-controller-sops
Name-Real: Toshiaki Maki
Name-Email: [email protected]
EOF
docker run --rm -v $HOME/.gnupg:/root/.gnupg --entrypoint gpg maven:3.8.2 --batch --full-generate-key /root/.gnupg/conf
docker run --rm -v $HOME/.gnupg:/root/.gnupg --entrypoint gpg maven:3.8.2 --list-secret-keys "Toshiaki Maki"
docker run --rm -v $HOME/.gnupg:/root/.gnupg --entrypoint gpg maven:3.8.2 --armor --export-secret-keys AB2978B9059B0ACD > $HOME/.gnupg/my.pk

How to restore the GPG env

brew install gnupg 

mkdir -p $HOME/.gnupg
cat <<EOF > $HOME/.gnupg/conf
%no-protection
Key-Type: 1
Key-Length: 4096
Subkey-Type: 1
Subkey-Length: 4096
Expire-Date: 0
Name-Comment: kapp-controller-sops
Name-Real: Toshiaki Maki
Name-Email: [email protected]
EOF

kubectl get secret -n kapp pgp-key -otemplate='{{index .data "my.pk" | base64decode}}' > $HOME/.gnupg/my.pk

gpg --import $HOME/.gnupg/my.pk
gpg --list-secret-keys "Toshiaki Maki"
gpg --list-secret-keys --keyid-format LONG 

gpg --edit-key AB2978B9059B0ACD trust quit
# 5 -> y