build-stemcell

#!/bin/bash 

set -e

# # Get the latest stemcell information from bosh.io
# # FIXME: Currently assumes versions are numbers that can be sorted
# read stemcell_version stemcell_url <<<$(
#     curl -s 'http://bosh.io/api/v1/stemcells/bosh-warden-boshlite-ubuntu-trusty-go_agent?all=1' |
#     jq -r 'max_by(.version | tonumber) | .version + " " +.regular.url'
# )

stemcell_version=3312
stemcell_url=https://bosh.io/d/stemcells/bosh-warden-boshlite-ubuntu-trusty-go_agent?v=${stemcell_version}

# Local directory for build
mkdir -p build

# Build the agent
GOOS=linux GOARCH=amd64 go build -o build/bosh-agent github.com/cloudfoundry/bosh-agent/main

# Download the latest stemcell and extract
wget --quiet -O - ${stemcell_url} | tar -C build -zx

# Build the image and tag it with the stemcell version from bosh.io metadata
mv build/image build/image.tgz
docker build -t sykesm/kubernetes-stemcell:${stemcell_version} . && rm build/image.tgz

# Tag the versioned image as latest
docker tag sykesm/kubernetes-stemcell:${stemcell_version} sykesm/kubernetes-stemcell:latest

# Create the stemcell archive
touch build/image

cat << MF_EOF > build/stemcell.MF
name: bosh-kubernetes-ubuntu-trusty-go_agent
version: "$stemcell_version"
sha1: da39a3ee5e6b4b0d3255bfef95601890afd80709
operating_system: ubuntu-trusty
cloud_properties:
  image: "sykesm/kubernetes-stemcell:$stemcell_version"
MF_EOF

# Delete the agent binary
rm -f build/bosh-agent

# Create the stemcell archive
( cd build && tar -zcf ../bosh-stemcell-${stemcell_version}-kubernetes-ubuntu-trusty-go_agent.tgz * )

# Cleanup
rm -rf build