def build(
working_dir_path: str,
template_file_path: str,
var_file_paths: List[str] = None,
vars: dict = None,
vars_from_files: dict = None,
debug: bool = False,
force: bool = False) -> dict:
packer_command_args = []
# add any specified var file paths
if var_file_paths:
for var_file_path in var_file_paths:
packer_command_args.append(f"-var-file={var_file_path}")
# add any specified vars
if vars:
for var_name, var_value in vars.items():
packer_command_args.append(f"-var={var_name}={var_value}")
# add any vars from files
if vars_from_files:
for var_name, file_path in vars_from_files.items():
var_value = \
read_value_from_file(
file_path,
working_dir=working_dir_path)
packer_command_args.append(f"-var={var_name}={var_value}")
# add force if requested
if force:
packer_command_args.append("-force")
# dump args on debug
if debug:
log('build args:')
log_pretty(packer_command_args)
# execute build command
packer_command_result = _packer(
'build',
*packer_command_args,
template_file_path,
working_dir=working_dir_path)
# get build manifest from output
packer_build_manifest = \
_parse_packer_parsed_output_for_build_manifest(packer_command_result)
# return the manifest
return packer_build_manifest
def validate(working_dir_path: str,
template_file_path: str,
only_builder: str = None,
var_file_paths: List[str] = None,
vars: dict = None,
vars_from_files: dict = None,
syntax_only: bool = False,
debug: bool = False) -> None:
packer_command_args = []
# add any specified var file paths
if var_file_paths:
for var_file_path in var_file_paths:
packer_command_args.append(f"-var-file={var_file_path}")
# add any specified vars
if vars:
for var_name, var_value in vars.items():
packer_command_args.append(f"-var={var_name}={var_value}")
# add any vars from files
if vars_from_files:
for var_name, file_path in vars_from_files.items():
var_value = \
read_value_from_file(
file_path,
working_dir=working_dir_path)
packer_command_args.append(f"-var={var_name}={var_value}")
# optionally check only syntax
if syntax_only:
packer_command_args.append('-syntax-only')
# optionally check only builder
if only_builder:
packer_command_args.append(f"-only={only_builder}")
# dump args on debug
if debug:
log('validate args:')
log_pretty(packer_command_args)
# execute validate command
_packer('validate',
*packer_command_args,
template_file_path,
working_dir=working_dir_path)
def do_out() -> None:
# read the concourse input payload
input_payload = _read_payload()
# get debug setting from payload
debug_enabled: bool = input_payload['params'].get('debug', False)
# get the template file path from the payload
template_file_path: str = input_payload['params']['template']
# get the working dir path from the input
working_dir_path = _get_working_dir_path()
# set env vars, if provided
if 'env_vars' in input_payload['params']:
os.environ.update(input_payload['params']['env_vars'])
# instantiate the var file paths and vars lists
var_file_paths: Optional[List[str]] = None
vars: Optional[Dict] = None
vars_from_files: Optional[Dict] = None
only_builder: Optional[str] = None
# add var file paths, if provided
if 'var_files' in input_payload['params']:
var_file_paths = input_payload['params']['var_files']
# add vars, if provided
if 'vars' in input_payload['params']:
vars = input_payload['params']['vars']
# add vars from files, if provided
if 'vars_from_files' in input_payload['params']:
vars_from_files = input_payload['params']['vars_from_files']
# set env vars from files, if provided
if 'env_vars_from_files' in input_payload['params']:
_process_env_var_files(input_payload['params']['env_vars_from_files'],
working_dir_path)
# get the only builders, if provided
if 'only' in input_payload['params']:
only_builder: str = input_payload['params']['only']
# dump details, if debug enabled
if debug_enabled:
log('var_file_paths:')
log_pretty(var_file_paths)
log('vars:')
log_pretty(vars)
# dump the current packer version
lib.packer.version()
# validate the template
lib.packer.validate(working_dir_path,
template_file_path,
only_builder=only_builder,
var_file_paths=var_file_paths,
vars=vars,
vars_from_files=vars_from_files,
debug=debug_enabled)
# build the template, getting the build manifest back
build_manifest = lib.packer.build(working_dir_path,
template_file_path,
only_builder=only_builder,
var_file_paths=var_file_paths,
vars=vars,
vars_from_files=vars_from_files,
debug=debug_enabled)
# dump build manifest, if debug
if debug_enabled:
log('build manifest:')
log_pretty(build_manifest)
# convert the manifest into a concourse output payload
output_payload = _create_concourse_out_payload_from_packer_build_manifest(
build_manifest)
# dump output payload, if debug
if debug_enabled:
log('output payload:')
log_pretty(output_payload)
# write out the payload
_write_payload(output_payload)
def _test__create_concourse_out_payload_from_packer_build_manifest(
build_manifest: dict) -> None:
log_pretty(
lib.concourse._create_concourse_out_payload_from_packer_build_manifest(
build_manifest))