def import_image(image_names: List[str], namespace: str, all_images: bool,
check_s2i_thoth: bool) -> None:
"""Import Thoth image into an OpenShift deployment."""
if all_images and image_names:
_LOGGER.error(
"Cannot import all images if one or multiple image names were explicitly provided"
)
sys.exit(1)
if not (all_images or image_names):
_LOGGER.error(
"No image to import provided, state the image name explicitly or use --all for importing all Thoth images"
)
sys.exit(1)
if not (image_names or all_images):
image_names = [
click.prompt("Choose Thoth image to be imported",
default=_DEFAULT_S2I_THOTH)
]
if image_names and check_s2i_thoth:
thoth_images = get_thoth_s2i_images()
error = False
for image_name in image_names:
parts = image_name.rsplit(":", maxsplit=1)
if len(parts) == 2:
# Discard the image tag.
image_name = parts[0]
if image_name not in thoth_images:
_LOGGER.error(
"Image %r not found in Thoth's images, available are: %s",
image_name,
thoth_images,
)
error = True
if error:
sys.exit(1)
if not image_names:
image_names = get_thoth_s2i_images()
for image_name in image_names:
_LOGGER.info("Importing image %r to namespace %r", image_name,
namespace)
import_thoth_s2i_image(namespace, image_name)
def migrate(
namespace: str,
s2i_thoth: str,
tag: str,
from_image_stream_tag: str,
selector: Optional[str] = None,
do_import_image: bool = True,
dry_run: bool = False,
trigger_build: bool = False,
check_s2i_thoth: bool = True,
insert_env_vars: bool = True,
) -> None:
"""Migrate an existing OpenShift application to use Thoth.
Adjust an existing OpenShift deployment to use Thoth by adjusting OpenShift's BuildConfigs.
"""
s2i_thoth = s2i_thoth or click.prompt("Choose Thoth image to be imported",
default=_DEFAULT_S2I_THOTH)
if check_s2i_thoth:
thoth_images = get_thoth_s2i_images()
if s2i_thoth not in thoth_images:
_LOGGER.error(
"Image %r not found in Thoth's images, available are: %r",
s2i_thoth,
thoth_images,
)
sys.exit(1)
from_image_stream_tag_re = re.compile(from_image_stream_tag)
image_stream_name = s2i_thoth.rsplit("/", maxsplit=1)[-1]
with tempfile.NamedTemporaryFile() as temp_file:
oc_get_bc(namespace=namespace, selector=selector, path=temp_file.name)
build_configs = BuildConfig.load_all(path=temp_file.name,
skip_errors=True)
changed_build_configs = change_image_stream(
build_configs,
f"{image_stream_name}:{tag}",
lambda bc: bool(
from_image_stream_tag_re.fullmatch(bc.get_image_stream_tag())),
)
if insert_env_vars:
for build_config in changed_build_configs.values():
build_config.insert_thoth_env_vars()
if dry_run:
if trigger_build:
_LOGGER.warning("Dry run will not trigger build")
if do_import_image:
_LOGGER.warning(
"Dry run will not import image into OpenShift's registry")
for build_config in changed_build_configs.values():
click.echo("--")
click.echo(build_config.to_yaml())
return
for build_config in changed_build_configs.values():
build_config.apply()
if trigger_build:
for build_config in changed_build_configs.values():
build_config.trigger_build(only_if_no_config_change=True)
if len(changed_build_configs) > 0 and do_import_image:
import_thoth_s2i_image(namespace, s2i_thoth)