def ensure_helm_setup():
"""Ensure up-to-date helm installation. Return the path to the found Helm executable"""
# we currently have both helmV3 and helmV2 in our images. To keep it convenient for local
# execution, try both
try:
helm_executable = which('helm3')
except Failure:
info("No executable 'helm3' found in path. Falling back to 'helm'")
helm_executable = which('helm')
with open(os.devnull) as devnull:
subprocess.run([
helm_executable, 'repo', 'add', 'concourse',
CONCOURSE_HELM_CHART_REPO
],
check=True,
stdout=devnull)
subprocess.run(
[helm_executable, 'repo', 'add', 'stable', STABLE_HELM_CHART_REPO],
check=True,
stdout=devnull)
subprocess.run([helm_executable, 'repo', 'update'],
check=True,
stdout=devnull)
return helm_executable
def destroy_concourse_landscape(config_name: str, release_name: str):
# Fetch concourse and kubernetes config
config_factory = global_ctx().cfg_factory()
config_set = config_factory.cfg_set(cfg_name=config_name)
concourse_cfg = config_set.concourse()
kubernetes_config_name = concourse_cfg.kubernetes_cluster_config()
kubernetes_config = config_factory.kubernetes(kubernetes_config_name)
context = kube_ctx
context.set_kubecfg(kubernetes_config.kubeconfig())
# Delete helm release
helm_cmd_path = which("helm")
KUBECONFIG_FILE_NAME = 'kubecfg'
helm_env = os.environ.copy()
helm_env['KUBECONFIG'] = KUBECONFIG_FILE_NAME
with tempfile.TemporaryDirectory() as temp_dir:
with open(os.path.join(temp_dir, KUBECONFIG_FILE_NAME), 'w') as f:
yaml.dump(kubernetes_config.kubeconfig(), f)
try:
subprocess.run([helm_cmd_path, "delete", release_name, "--purge"],
env=helm_env,
check=True,
cwd=temp_dir)
except CalledProcessError:
# ignore sporadic connection timeouts from infrastructure
warning(
"Connection to K8s cluster lost. Continue with deleting namespace {ns}"
.format(ns=release_name))
# delete namespace
namespace_helper = context.namespace_helper()
namespace_helper.delete_namespace(namespace=release_name)
def deploy_or_upgrade_concourse(
config_set_name: CliHint(typehint=str, help=CONFIG_SET_HELP),
deployment_name: CliHint(
typehint=str, help="namespace and deployment name") = 'concourse',
timeout_seconds: CliHint(
typehint=int, help="how long to wait for concourse startup") = 180,
):
'''Deploys a new concourse-instance using the given deployment name and config-directory.'''
which("helm")
cfg_factory = ctx().cfg_factory()
config_set = cfg_factory.cfg_set(config_set_name)
setup_concourse.deploy_concourse_landscape(
config_set=config_set,
deployment_name=deployment_name,
timeout_seconds=timeout_seconds,
)
def ensure_helm_setup():
"""Ensure up-to-date helm installation. Return the path to the found Helm executable"""
helm_executable = which('helm')
with open(os.devnull) as devnull:
subprocess.run([helm_executable, 'init', '--client-only'],
check=True,
stdout=devnull)
subprocess.run([helm_executable, 'repo', 'update'],
check=True,
stdout=devnull)
return helm_executable
def ensure_helm_setup():
"""Ensure up-to-date helm installation. Return the path to the found Helm executable"""
helm_executable = which('helm')
with open(os.devnull) as devnull:
subprocess.run([
helm_executable, 'repo', 'add', 'concourse',
CONCOURSE_HELM_CHART_REPO
],
check=True,
stdout=devnull)
subprocess.run([helm_executable, 'repo', 'update'],
check=True,
stdout=devnull)
return helm_executable