Kubernetes Bash Helper Functions

.kubefunc.bash

function kube-pod() {
  kubectl get pods --selector=run=$1 --output=jsonpath={.items..metadata.name}
}

function helm-install-rbac() {
        kubectl create serviceaccount tiller --namespace kube-system
  kubectl create clusterrolebinding tiller-cluster-rule \
    --clusterrole=cluster-admin \
    --serviceaccount=kube-system:tiller
  helm init --service-account=tiller
  helm repo update
}

function install-kubectl() {
    K8S_VERSION=${1:-v1.8.1};
    ARCH=amd64;
    ROOTFS=${HOME};
    BIN_DIR=bin;
    K8S_URL=${K8S_URL:-https://storage.googleapis.com/kubernetes-release/release};
    curl -sfSL ${K8S_URL}/${K8S_VERSION}/bin/linux/${ARCH}/kubectl > ${ROOTFS}/${BIN_DIR}/kubectl;
    [[ $? -ne 0 ]] && echo "ERROR: could not download kubectl" && return 1;
    chmod +x ${ROOTFS}/${BIN_DIR}/kubectl;
    echo "Installed kubectl in ${BIN_DIR}/kubectl"
}

function kube-set-context() {
        ctx=$1
        echo "INFO: Setting kubectl context to: ${ctx}"
        kubectl config set-context $(kubectl config current-context) --namespace=${ctx}
}