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run.sh
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run.sh
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#!/bin/sh
GCLOUD_INSTALL_DIR="$WERCKER_STEP_ROOT/google-cloud-sdk/bin"
kubectl="$GCLOUD_INSTALL_DIR/kubectl"
gcloud_auth_config() {
if [ ! -n "$WERCKER_KUBECTL_GKE_CLUSTER_NAME" ]; then
fail "GKE cluster name must be provided."
fi
if [ ! -n "$WERCKER_KUBECTL_GKE_CLUSTER_ZONE" ]; then
fail "GKE cluster zone must be provided."
fi
if [ ! -n "$WERCKER_KUBECTL_GKE_CLUSTER_PROJECT" ]; then
fail "GKE cluster project name must be provided."
fi
gcloud="$GCLOUD_INSTALL_DIR/gcloud"
gcloud_key_file="$WERCKER_STEP_ROOT/gcloud.json"
export CLOUDSDK_COMPUTE_ZONE="$WERCKER_KUBECTL_GKE_CLUSTER_ZONE"
export CLOUDSDK_CORE_PROJECT="$WERCKER_KUBECTL_GKE_CLUSTER_PROJECT"
# Write the JSON string to a temporary file
echo "$WERCKER_KUBECTL_GCLOUD_KEY_JSON" > "$gcloud_key_file"
# Attempt to activate the service account with Google
if ! $gcloud auth activate-service-account --key-file "$gcloud_key_file"; then
fail "Unable to authenticate with Google Cloud..."
fi
# This env var pointing to the temporary JSON key file needs to be exported
# as it's read by kubectl's GKE authenticator plugin
export GOOGLE_APPLICATION_CREDENTIALS="$gcloud_key_file"
# This will set the kubectl config...
if ! $gcloud container clusters get-credentials "$WERCKER_KUBECTL_GKE_CLUSTER_NAME"; then
fail "Unable to get kubectl credentials for GKE cluster."
fi
}
main() {
display_version
if [ -n "$WERCKER_KUBECTL_GCLOUD_KEY_JSON" ]; then
# Google cloud key JSON found. We'll assume kubectl
# needs access to a GKE cluster, and will configure kubectl
# to use the service account that should be defined in the JSON string.
echo "Configuring gcloud service account"
gcloud_auth_config;
fi
if [ -z "$WERCKER_KUBECTL_COMMAND" ]; then
fail "wercker-kubectl: command argument cannot be empty"
fi
cmd="$WERCKER_KUBECTL_COMMAND"
# Global args
#global_args
global_args=
raw_global_args="$WERCKER_KUBECTL_RAW_GLOBAL_ARGS"
# token
if [ -n "$WERCKER_KUBECTL_TOKEN" ]; then
global_args="$global_args --token=\"$WERCKER_KUBECTL_TOKEN\""
fi
# username
if [ -n "$WERCKER_KUBECTL_USERNAME" ]; then
global_args="$global_args --username=\"$WERCKER_KUBECTL_USERNAME\""
fi
# password
if [ -n "$WERCKER_KUBECTL_PASSWORD" ]; then
global_args="$global_args --password=\"$WERCKER_KUBECTL_PASSWORD\""
fi
# server
if [ -n "$WERCKER_KUBECTL_SERVER" ]; then
global_args="$global_args --server=\"$WERCKER_KUBECTL_SERVER\""
fi
# insecure-skip-tls-verify
if [ -n "$WERCKER_KUBECTL_INSECURE_SKIP_TLS_VERIFY" ]; then
global_args="$global_args --insecure-skip-tls-verify=\"$WERCKER_KUBECTL_INSECURE_SKIP_TLS_VERIFY\""
fi
# certificate-authority
if [ -n "$WERCKER_KUBECTL_CERTIFICATE_AUTHORITY" ]; then
global_args="$global_args --certificate-authority=\"$WERCKER_KUBECTL_CERTIFICATE_AUTHORITY\""
fi
# client-certificate
if [ -n "$WERCKER_KUBECTL_CLIENT_CERTIFICATE" ]; then
global_args="$global_args --client-certificate=\"$WERCKER_KUBECTL_CLIENT_CERTIFICATE\""
fi
# client-key
if [ -n "$WERCKER_KUBECTL_CLIENT_KEY" ]; then
global_args="$global_args --client-key=\"$WERCKER_KUBECTL_CLIENT_KEY\""
fi
# Command specific flags
args=
raw_args="$WERCKER_KUBECTL_RAW_ARGS"
# file
if [ -n "$WERCKER_KUBECTL_FILE" ]; then
args="$args --file=\"$WERCKER_KUBECTL_FILE\""
fi
# output
if [ -n "$WERCKER_KUBECTL_OUTPUT" ]; then
args="$args --output=\"$WERCKER_KUBECTL_OUTPUT\""
fi
# template
if [ -n "$WERCKER_KUBECTL_TEMPLATE" ]; then
args="$args --template=\"$WERCKER_KUBECTL_TEMPLATE\""
fi
# patch
if [ -n "$WERCKER_KUBECTL_PATCH" ]; then
args="$args --patch=\"$WERCKER_KUBECTL_PATCH\""
fi
# interactive
if [ -n "$WERCKER_KUBECTL_INTERACTIVE" ]; then
args="$args --interactive=\"$WERCKER_KUBECTL_INTERACTIVE\""
fi
# image
if [ -n "$WERCKER_KUBECTL_IMAGE" ]; then
args="$args --image=\"$WERCKER_KUBECTL_IMAGE\""
fi
# timeout
if [ -n "$WERCKER_KUBECTL_TIMEOUT" ]; then
args="$args --timeout=\"$WERCKER_KUBECTL_TIMEOUT\""
fi
# update-period
if [ -n "$WERCKER_KUBECTL_UPDATE_PERIOD" ]; then
args="$args --update-period=\"$WERCKER_KUBECTL_UPDATE_PERIOD\""
fi
# deployment-label-key
if [ -n "$WERCKER_KUBECTL_DEPLOYMENT_LABEL_KEY" ]; then
args="$args --deployment-label-key=\"$WERCKER_KUBECTL_DEPLOYMENT_LABEL_KEY\""
fi
# poll-interval
if [ -n "$WERCKER_KUBECTL_POLL_INTERVAL" ]; then
args="$args --poll-interval=\"$WERCKER_KUBECTL_POLL_INTERVAL\""
fi
# rollback
if [ -n "$WERCKER_KUBECTL_ROLLBACK" ]; then
args="$args --rollback=\"$WERCKER_KUBECTL_ROLLBACK\""
fi
# replicas
if [ -n "$WERCKER_KUBECTL_REPLICAS" ]; then
args="$args --replicas=\"$WERCKER_KUBECTL_REPLICAS\""
fi
# current-replicas
if [ -n "$WERCKER_KUBECTL_CURRENT_REPLICAS" ]; then
args="$args --current-replicas=\"$WERCKER_KUBECTL_CURRENT_REPLICAS\""
fi
# resource-version
if [ -n "$WERCKER_KUBECTL_RESOURCE_VERSION" ]; then
args="$args --resource-version=\"$WERCKER_KUBECTL_RESOURCE_VERSION\""
fi
# pod
if [ -n "$WERCKER_KUBECTL_POD" ]; then
args="$args --pod=\"$WERCKER_KUBECTL_POD\""
fi
# stdin
if [ -n "$WERCKER_KUBECTL_STDIN" ]; then
args="$args --stdin=\"$WERCKER_KUBECTL_STDIN\""
fi
# tty
if [ -n "$WERCKER_KUBECTL_TTY" ]; then
args="$args --tty=\"$WERCKER_KUBECTL_TTY\""
fi
# grace-period
if [ -n "$WERCKER_KUBECTL_GRACE_PERIOD" ]; then
args="$args --grace-period=\"$WERCKER_KUBECTL_GRACE_PERIOD\""
fi
# selector
if [ -n "$WERCKER_KUBECTL_SELECTOR" ]; then
args="$args --selector=\"$WERCKER_KUBECTL_SELECTOR\""
fi
# all
if [ -n "$WERCKER_KUBECTL_ALL" ]; then
args="$args --all=\"$WERCKER_KUBECTL_ALL\""
fi
# overwrite
if [ -n "$WERCKER_KUBECTL_OVERWRITE" ]; then
args="$args --overwrite=\"$WERCKER_KUBECTL_OVERWRITE\""
fi
info "Running kubctl command"
if [ "$WERCKER_KUBECTL_DEBUG" = "true" ]; then
info "kubectl $global_args $raw_global_args $cmd $args $raw_args"
fi
eval "$kubectl" "$global_args" "$raw_global_args" "$cmd" "$args" "$raw_args"
}
display_version() {
info "Running kubectl version:"
"$kubectl" version --client
echo ""
}
main;