def test_dockerignore_read(self, patch_exists):
data = r"""# unittest
#Ignore the logs directory
logs/
#Ignoring the password file
passwords.txt
#Ignoring git and cache folders
.git
.cache
#Ignoring all the markdown and class files
*.md
**/*.class
"""
patch_exists.return_value = True
with mock.patch("builtins.open", mock_open(read_data=data)):
actual = api.prepare_dockerignore(".")
self.assertListEqual(
actual,
["logs/", "passwords.txt", ".git", ".cache", "*.md", "**/*.class"])
patch_exists.assert_called_once_with("./.dockerignore")
def test_dockerignore_empty(self, patch_exists):
data = r"""# unittest
"""
patch_exists.return_value = True
with mock.patch("builtins.open", mock_open(read_data=data)):
actual = api.prepare_dockerignore(".")
self.assertListEqual(actual, [])
patch_exists.assert_called_once_with("./.dockerignore")
def build(self, **kwargs) -> Tuple[Image, Iterator[bytes]]:
"""Returns built image.
Keyword Args:
path (str) – Path to the directory containing the Dockerfile
fileobj – A file object to use as the Dockerfile. (Or an IO object)
tag (str) – A tag to add to the final image
quiet (bool) – Whether to return the status
nocache (bool) – Don’t use the cache when set to True
rm (bool) – Remove intermediate containers. Default True
timeout (int) – HTTP timeout
custom_context (bool) – Optional if using fileobj (ignored)
encoding (str) – The encoding for a stream. Set to gzip for compressing (ignored)
pull (bool) – Downloads any updates to the FROM image in Dockerfile
forcerm (bool) – Always remove intermediate containers, even after unsuccessful builds
dockerfile (str) – path within the build context to the Dockerfile
buildargs (Mapping[str,str) – A dictionary of build arguments
container_limits (Dict[str, Union[int,str]]) –
A dictionary of limits applied to each container created by the build process.
Valid keys:
- memory (int): set memory limit for build
- memswap (int): Total memory (memory + swap), -1 to disable swap
- cpushares (int): CPU shares (relative weight)
- cpusetcpus (str): CPUs in which to allow execution, For example, "0-3", "0,1"
- cpuperiod (int): CPU CFS (Completely Fair Scheduler) period (Podman only)
- cpuquota (int): CPU CFS (Completely Fair Scheduler) quota (Podman only)
shmsize (int) – Size of /dev/shm in bytes. The size must be greater than 0.
If omitted the system uses 64MB
labels (Mapping[str,str]) – A dictionary of labels to set on the image
cache_from (List[str]) – A list of image's identifier used for build cache resolution
target (str) – Name of the build-stage to build in a multi-stage Dockerfile
network_mode (str) – networking mode for the run commands during build
squash (bool) – Squash the resulting images layers into a single layer.
extra_hosts (Dict[str,str]) – Extra hosts to add to /etc/hosts in building
containers, as a mapping of hostname to IP address.
platform (str) – Platform in the format os[/arch[/variant]].
isolation (str) – Isolation technology used during build. (ignored)
use_config_proxy (bool) – (ignored)
http_proxy (bool) - Inject http proxy environment variables into container (Podman only)
Returns:
first item is Image built
second item is the build logs
Raises:
BuildError: when there is an error during the build.
APIError: when service returns an error.
TypeError: when neither path nor fileobj is not specified.
"""
if "path" not in kwargs and "fileobj" not in kwargs:
raise TypeError("Either path or fileobj must be provided.")
if "gzip" in kwargs and "encoding" in kwargs:
raise PodmanError(
"Custom encoding not supported when gzip enabled.")
# All unsupported kwargs are silently ignored
params = {
"dockerfile": kwargs.get("dockerfile", None),
"forcerm": kwargs.get("forcerm", None),
"httpproxy": kwargs.get("http_proxy", None),
"networkmode": kwargs.get("network_mode", None),
"nocache": kwargs.get("nocache", None),
"platform": kwargs.get("platform", None),
"pull": kwargs.get("pull", None),
"q": kwargs.get("quiet", None),
"remote": kwargs.get("remote", None),
"rm": kwargs.get("rm", None),
"shmsize": kwargs.get("shmsize", None),
"squash": kwargs.get("squash", None),
"t": kwargs.get("tag", None),
"target": kwargs.get("target", None),
}
if "buildargs" in kwargs:
params["buildargs"] = json.dumps(kwargs.get("buildargs"))
if "cache_from" in kwargs:
params["cacheform"] = json.dumps(kwargs.get("cache_from"))
if "container_limits" in kwargs:
params["cpuperiod"] = kwargs["container_limits"].get(
"cpuperiod", None)
params["cpuquota"] = kwargs["container_limits"].get(
"cpuquota", None)
params["cpusetcpus"] = kwargs["container_limits"].get(
"cpusetcpus", None)
params["cpushares"] = kwargs["container_limits"].get(
"cpushares", None)
params["memory"] = kwargs["container_limits"].get("memory", None)
params["memswap"] = kwargs["container_limits"].get("memswap", None)
if "extra_hosts" in kwargs:
params["extrahosts"] = json.dumps(kwargs.get("extra_hosts"))
if "labels" in kwargs:
params["labels"] = json.dumps(kwargs.get("labels"))
params = dict(filter(lambda e: e[1] is not None, params.items()))
context_dir = params.pop("path", None)
timeout = params.pop("timeout", api.DEFAULT_TIMEOUT)
body = None
if context_dir:
# The Dockerfile will be copied into the context_dir if needed
params["dockerfile"] = api.prepare_dockerfile(
context_dir, params["dockerfile"])
excludes = api.prepare_dockerignore(context_dir)
body = api.create_tar(context_dir,
exclude=excludes,
gzip=kwargs.get("gzip", False))
response = self.client.post(
"/build",
params=params,
data=body,
headers={
"Content-type": "application/x-tar",
"X-Registry-Config": "TODO",
},
stream=True,
timeout=timeout,
)
if hasattr(body, "close"):
body.close()
if response.status_code != 200:
body = response.json()
raise APIError(body["cause"],
response=response,
explanation=body["message"])
image_id = unknown = None
marker = re.compile(r'(^Successfully built |sha256:)([0-9a-f]+)$')
report_stream, stream = itertools.tee(response.iter_lines())
for line in stream:
result = json.loads(line)
if "error" in result:
raise BuildError(result["error"], report_stream)
if "stream" in result:
match = marker.match(result["stream"])
if match:
image_id = match.group(2)
unknown = line
if image_id:
return self.get(image_id), report_stream
raise BuildError(unknown or 'Unknown', report_stream)
def test_dockerignore_404(self):
actual = api.prepare_dockerignore("/does/not/exists")
self.assertListEqual([], actual)
def build(self, **kwargs) -> Tuple[Image, Iterator[bytes]]:
"""Returns built image.
Keyword Args:
path (str) – Path to the directory containing the Dockerfile
fileobj – A file object to use as the Dockerfile. (Or an IO object)
tag (str) – A tag to add to the final image
quiet (bool) – Whether to return the status
nocache (bool) – Don’t use the cache when set to True
rm (bool) – Remove intermediate containers. Default True
timeout (int) – HTTP timeout
custom_context (bool) – Optional if using fileobj (ignored)
encoding (str) – The encoding for a stream. Set to gzip for compressing (ignored)
pull (bool) – Downloads any updates to the FROM image in Dockerfile
forcerm (bool) – Always remove intermediate containers, even after unsuccessful builds
dockerfile (str) – path within the build context to the Dockerfile
buildargs (Mapping[str,str) – A dictionary of build arguments
container_limits (Dict[str, Union[int,str]]) –
A dictionary of limits applied to each container created by the build process.
Valid keys:
- memory (int): set memory limit for build
- memswap (int): Total memory (memory + swap), -1 to disable swap
- cpushares (int): CPU shares (relative weight)
- cpusetcpus (str): CPUs in which to allow execution, For example, "0-3", "0,1"
- cpuperiod (int): CPU CFS (Completely Fair Scheduler) period (Podman only)
- cpuquota (int): CPU CFS (Completely Fair Scheduler) quota (Podman only)
shmsize (int) – Size of /dev/shm in bytes. The size must be greater than 0.
If omitted the system uses 64MB
labels (Mapping[str,str]) – A dictionary of labels to set on the image
cache_from (List[str]) – A list of image's identifier used for build cache resolution
target (str) – Name of the build-stage to build in a multi-stage Dockerfile
network_mode (str) – networking mode for the run commands during build
squash (bool) – Squash the resulting images layers into a single layer.
extra_hosts (Dict[str,str]) – Extra hosts to add to /etc/hosts in building
containers, as a mapping of hostname to IP address.
platform (str) – Platform in the format os[/arch[/variant]].
isolation (str) – Isolation technology used during build. (ignored)
use_config_proxy (bool) – (ignored)
http_proxy (bool) - Inject http proxy environment variables into container (Podman only)
Returns:
first item is Image built
second item is the build logs
Raises:
BuildError: when there is an error during the build.
APIError: when service returns an error.
TypeError: when neither path nor fileobj is not specified.
"""
params = self._render_params(kwargs)
body = None
path = None
if "fileobj" in kwargs:
path = tempfile.TemporaryDirectory()
filename = pathlib.Path(path.name) / params["dockerfile"]
with open(filename, "w") as file:
shutil.copyfileobj(kwargs["fileobj"], file)
body = api.create_tar(anchor=path.name, gzip=kwargs.get("gzip", False))
elif "path" in kwargs:
# The Dockerfile will be copied into the context_dir if needed
params["dockerfile"] = api.prepare_containerfile(kwargs["path"], params["dockerfile"])
excludes = api.prepare_dockerignore(kwargs["path"])
body = api.create_tar(
anchor=kwargs["path"], exclude=excludes, gzip=kwargs.get("gzip", False)
)
timeout = kwargs.get("timeout", api.DEFAULT_TIMEOUT)
response = self.client.post(
"/build",
params=params,
data=body,
headers={
"Content-type": "application/x-tar",
# "X-Registry-Config": "TODO",
},
stream=True,
timeout=timeout,
)
if hasattr(body, "close"):
body.close()
if hasattr(path, "cleanup"):
path.cleanup()
if response.status_code != requests.codes.okay:
body = response.json()
raise APIError(body["cause"], response=response, explanation=body["message"])
image_id = unknown = None
marker = re.compile(r"(^[0-9a-f]+)\n$")
report_stream, stream = itertools.tee(response.iter_lines())
for line in stream:
result = json.loads(line)
if "error" in result:
raise BuildError(result["error"], report_stream)
if "stream" in result:
match = marker.match(result["stream"])
if match:
image_id = match.group(1)
unknown = line
if image_id:
return self.get(image_id), report_stream
raise BuildError(unknown or "Unknown", report_stream)