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Signed-off-by: Andy Goldstein <andy.goldstein@redhat.com>
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ncdc authored and m1kola committed Aug 2, 2023
1 parent eac7920 commit bcae27f
Showing 1 changed file with 18 additions and 75 deletions.
93 changes: 18 additions & 75 deletions Tiltfile
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# This loads a helper function that isn't part of core Tilt that simplifies restarting the process in the container
# when files changes.
load('ext://restart_process', 'docker_build_with_restart')

# These are the 4 binaries that make up the 4 deployments for rukpak.
binaries = ["helm", "core", "webhooks", "crdvalidator"]

# This is how we build each binary
build_cmd = '''
mkdir -p .tiltbuild/bin
CGO_ENABLED=0 GOOS=linux go build -o .tiltbuild/bin/{binary} ./cmd/{binary}
'''

# All of our binaries and images are built the same way, so we can iterate and substitute the binary name where needed.
for binary in binaries:
# Treat the main binary as a local resource, so we can automatically rebuild it when any of the deps change. This
# builds it locally, targeting linux, so it can run in a linux container.
local_resource(
'{}_binary'.format(binary),
cmd = build_cmd.format(binary=binary),
deps = ['api', 'cmd/{}'.format(binary), 'internal', 'pkg', 'go.mod', 'go.sum']
)

# Configure our image build. If the file in live_update.sync (.tiltbuild/bin/$binary) changes, Tilt
# copies it to the running container and restarts it.
docker_build_with_restart(
# This has to match an image in the k8s_yaml we call below, so Tilt knows to use this image for our Deployment,
# instead of the actual image specified in the yaml.
ref = 'quay.io/operator-framework/rukpak:{}'.format(binary),
# This is the `docker build` context, and because we're only copying in the binary we've already had Tilt build
# locally, we set the context to the directory containing the binary.
context = '.tiltbuild/bin',
# We use a slimmed-down Dockerfile that only has $binary in it.
dockerfile_contents = '''
FROM gcr.io/distroless/static:debug
EXPOSE 8080
WORKDIR /
COPY {} /.
'''.format(binary),
# The set of files Tilt should include in the build. In this case, it's just the binary we built above.
only = binary,
# If .tiltbuild/bin/$binary changes, Tilt will copy it into the running container and restart the process.
live_update = [
sync('.tiltbuild/bin/{}'.format(binary), '/{}'.format(binary)),
],
# The command to run in the container.
entrypoint = "/{}".format(binary),
)

# Tell Tilt what to deploy by running kustomize and then doing some manipulation to make things work for Tilt.
objects = decode_yaml_stream(kustomize('manifests/overlays/cert-manager'))
for o in objects:
if o['kind'] != 'Deployment':
# We only need to modify Deployments, so we can skip this
continue

# For Tilt's live_update functionality to work, we have to run the container as root. Otherwise, Tilt won't
# be able to untar on top of /$binary in the container's file system (this is how live update
# works). If the container definition says runAsNonRoot=true, we flip it to false.
if 'securityContext' in o['spec']['template']['spec']:
o['spec']['template']['spec']['securityContext']['runAsNonRoot'] = False

# The rukpak Deployment manifests all use the same image, quay.io/operator-framework/rukpak:devel. Tilt needs each
# Deployment's image to be unique. We replace the :devel tag with what is effectively :$binary, e.g. :helm.
for c in o['spec']['template']['spec']['containers']:
if c['name'] == 'kube-rbac-proxy':
continue
# The container's command is the same as the binary name with a leading / in front. Replace the / with a : to
# turn it into a valid image tag.
command = c['command'][0].replace('/',':')
# Update the image so instead of :devel it's :$binary
c['image'] = c['image'].replace(':devel', command)

# Now apply all the yaml
k8s_yaml(encode_yaml_stream(objects))
if not os.path.exists('../tilt-support'):
fail('Please clone https://github.com/operator-framework/tilt-support to ../tilt-support')

load('../tilt-support/Tiltfile', 'deploy_repo')

repo = {
'image': 'quay.io/operator-framework/rukpak',
'yaml': 'manifests/overlays/cert-manager',
'binaries': {
'core': 'core',
'crdvalidator': 'crd-validation-webhook',
'helm': 'helm-provisioner',
'webhooks': 'rukpak-webhooks',
},
'starting_debug_port': 10000,
}

deploy_repo('rukpak', repo)

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