Chef's Operations Workflow

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Chef's Operations Workflow Joshua Timberman @jtimberman

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#!/bin/bash set -euo pipefail if [[ ! -z ${CI+x} ]]; then aws-configure chef-cd mkdir -p ~/.kube aws --profile chef-cd s3 cp s3://chef-cd-citadel/kubernetes.chef.co.config ~/.kube/config else echo "WARN: Not running in Buildkite, assuming local manual deployment" echo "WARN: This requires that ~/.kube/config exists with the proper content" fi export ENVIRONMENT=${ENVIRONMENT:-dev} export APP=${APP} DEBUG=${DEBUG:-false} # This block translates the "environment" into the appropriate Habitat # channel from which to deploy the packages if [ "$ENVIRONMENT" == "acceptance" ]; then export CHANNEL=acceptance elif [ "$ENVIRONMENT" == "production" ]; then export CHANNEL=stable elif [ "$ENVIRONMENT" == "dev" ] || [ "$ENVIRONMENT" == "test" ]; then export CHANNEL=unstable else echo "We do not currently support deploying to $ENVIRONMENT" exit 1 fi # We need the HAB_AUTH_TOKEN set (via Buildkite pipeline) for private packages get_image_tag() { results=$(curl --silent -H "Authorization: Bearer $HAB_AUTH_TOKEN" https://willem.habitat.sh/v1/depot/channels/chefops/${CHANNEL}/pkgs/${APP}/latest | jq '.ident') pkg_version=$(echo "$results" | jq -r .version) pkg_release=$(echo "$results" | jq -r .release) echo "${pkg_version}-${pkg_release}" } # Retrieves the ELB's public DNS name get_elb_hostname() { kubectl get services ${APP}-${ENVIRONMENT} --namespace=${APP} -o json 2>/dev/null | \ jq '.status.loadBalancer.ingress[].hostname' -r } # The ELB isn't ready until the hostname is set, so wait until it's ready wait_for_elb() { attempts=0 max_attempts=10 elb_host="" while [[ $attempts -lt $max_attempts ]]; do elb_host=$(get_elb_hostname || echo) if [[ ! -n $elb_host ]]; then echo "Did not find ELB yet... sleeping 5s" attempts=$[$attempts + 1] sleep 5 else echo "Found ELB: $elb_host" break fi done } # Used for debugging on a local workstation if [[ $DEBUG == "true" ]]; then echo "--- DEBUG: Environment" echo "Application: ${APP}" echo "Channel: ${CHANNEL}" echo "Environment: ${ENVIRONMENT}" fi echo "--- Applying kubernetes configuration for ${ENVIRONMENT} to cluster" IMAGE_TAG=$(get_image_tag) erb -T- kubernetes/deployment.yml | kubectl apply -f - if [[ `grep -c "^kind: Service$" kubernetes/deployment.yml` -gt 0 ]]; then echo "+++ Waiting for Load Balancer..." wait_for_elb fi kubernetes.sh

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