def upload_content_v2(registry: str,
remote_image_name: str,
local_image: str) -> Tuple[str, str]:
"""
Push a content to Docker Registry and return the URL to access
:return: a tuple (image_link: str, image_digest: str)
"""
# Replace \\ -> none --> because in command line we can't write
# "nginx:latest" without the \\ ---> "nginx\:latest"
_image = os.path.abspath(local_image.replace("\\", ""))
if not os.path.exists(_image):
raise DockerscanNotExitsError("Local image selected do not exits")
insecure, registry_without_schema = _get_schema_and_security(registry)
d = DXF(registry_without_schema,
remote_image_name,
insecure=insecure)
image_digest = d.push_blob(_image)
# Image link
img_link = "{schema}://{host}/v2/{repo}/blobs/sha256:{digest}".format(
schema="http" if insecure else "https",
host=registry_without_schema,
repo=remote_image_name,
digest=image_digest
)
return img_link, image_digest
def do(self,
container_image: Optional[str] = None,
**kwargs) -> str: # type: ignore
[host, repo, alias, digest] = self.parse(container_image)
if digest:
return digest
if host is None:
host = "registry-1.docker.io"
if repo is None:
repo = "stencila/executa-midi"
if alias is None:
alias = "latest"
try:
dxf = DXF(host, repo, self.authenticate)
# Get the "Docker-Content-Digest" for the alias. This is the SHA256 hash
# that can be used with `docker run` and is on the Docker Hub for an image tag,
# not the one returned by ``.get_digest()`.
digest = dxf._get_dcd(alias)
except MissingCredentialsError as exc:
# If no credentials were available for the container registry
# then log a warning and return an unpinned container image.
# This is intended primarily for use during development so it is not
# necessary to provide credentials to create snapshots.
logger.warning(str(exc))
return self.deparse(host, repo)
else:
return self.deparse(host, repo, cast(str, digest))
def resolve_tag(image_loc: str):
logging.info(f"Resolving {image_loc}")
domain, org, repo, tag = parse_image_loc(image_loc)
dxf = DXF(domain, f"{org}/{repo}", tag, None)
hash = sha256(dxf.get_manifest(tag_to_pin).encode("utf-8")).hexdigest()
resolved = f"{domain}/{org}/{repo}@sha256:{hash}"
logging.info(f"{resolved}")
return resolved
def __init__(self, host, repo, alias, user, pw):
"""
Initializes the injector by downloading both the slim and the fat image manifest
"""
def auth(dxf, response):
dxf.authenticate(user, pw, response=response)
self.dxfObject = DXF(host, repo, tlsverify=True, auth=auth)
self.image_manifest = self._get_manifest(alias)
self.fat_manifest = self._get_fat_manifest(self.image_manifest)
def list_dockerhub_tags():
reponame = getattr(settings, 'DOCKER_REPO', None)
if reponame is None:
raise Exception('Unable to determine the current docker repo/image in use.')
# we'll assume dockerhub for the time being
dxf = DXF('registry-1.docker.io', reponame, auth)
return dxf.list_aliases()
def last_build_commit(self, namespace, repo, tag):
def auth(_dxf, response):
_dxf.authenticate(username=self.username, password=self.password, response=response, actions='*')
try:
dxf = DXF(host=self.registry, repo='{}/{}'.format(namespace, repo), auth=auth)
r = dxf._request('get', 'manifests/' + tag,
headers={'Accept': 'application/vnd.docker.distribution.manifest.v1+json'})
metadata = json.loads(r.content.decode('utf-8'))
return json.loads(metadata['history'][0]['v1Compatibility'])['config']['Labels']['org.label-schema.vcs-ref']
except Exception as e:
print("last_build_commit failed: {}".format(e))
return None
def _get_digest_by_tag(registry: str,
remote_image_name: str,
tag: str) -> str:
insecure, registry_without_schema = _get_schema_and_security(registry)
d = DXF(registry_without_schema,
remote_image_name,
insecure=insecure)
try:
return d.get_alias(alias=tag)[0]
except (IndexError, requests.exceptions.HTTPError):
return ""
def get_image_digest(self, repository: str, tag: str) -> str:
from dxf import DXF
from dxf.exceptions import DXFUnauthorizedError
try:
repository = f'library/{repository}' if '/' not in repository else repository
auth = 'Basic ' + self.auth if self.auth is not None else None
dxf = DXF(self.registry_host, repo=repository)
dxf.authenticate(authorization=auth, actions=['pull'])
except DXFUnauthorizedError:
raise RegistryAuthorizationException(f'Authentication with Docker registry {self.registry_host} failed. Run `docker login` first?')
try:
manifest = json.loads(dxf.get_manifest(tag))
return manifest['config']['digest']
except DXFUnauthorizedError:
raise RegistryImageNotFoundException(f'Image {repository}:{tag} not found in registry {self.registry_host}')
def last_build_commit(repo, tag):
try:
dxf = DXF(host=registry, repo='%s/%s' % (namespace, repo), auth=auth)
r = dxf._request(
'get',
'manifests/' + tag,
headers={
'Accept':
'application/vnd.docker.distribution.manifest.v1+json'
})
metadata = json.loads(r.content.decode('utf-8'))
return json.loads(
metadata['history'][0]
['v1Compatibility'])['config']['Labels'][last_commit_label]
except:
return None
def push_image_v2(registry: str,
remote_image_name: str,
local_image: str,
tag: str) -> str:
"""Push a content to Docker Registry and return the URL to access"""
insecure, registry_without_schema = _get_schema_and_security(registry)
download_link, digest = upload_content_v2(registry, remote_image_name, local_image)
d = DXF(registry_without_schema,
remote_image_name,
insecure=insecure)
d.set_alias(tag, digest)
return download_link
def __init__(self, host, repo, alias, user, pw):
"""
Initializes the injector by downloading both the slim and the fat image manifest
"""
def auth(dxf, response):
dxf.authenticate(user, pw, response=response)
self.dxfObject = DXF(host, repo, tlsverify=True, auth=auth)
self.image_manifest = self._get_manifest(alias)
self.fat_manifest = self._get_fat_manifest(self.image_manifest)
def find_current_tag(image, config):
registry = DXF(image.fullhost(), image.fullrepo(), registry_auth)
# FIXME: fail if check fails
#print(registry.api_version_check())
p = re.compile(config["tag"])
candidates = []
for tag in registry.list_aliases(iterate=True):
if p.match(tag):
candidates.append(tag)
if len(candidates) == 0:
return None
# more than one? sort by semver, highest 1st
if len(candidates) > 1:
candidates = sorted(candidates,
reverse=True,
key=functools.cmp_to_key(semver.compare))
return candidates[0]
def delete_image_v2(registry: str,
remote_image_name: str,
tag: str = "latest") -> Union[Set[str],
DockerscanError]:
"""
delete selected images from remote repo.
remote_image_name can contain regex expressions.
:return: return a set() with the images deleted
"""
insecure, registry_without_schema = _get_schema_and_security(registry)
d = DXF(registry_without_schema,
remote_image_name,
insecure=insecure)
removed = set()
# Getting remote digest for the tag
digest = _get_digest_by_tag(registry, remote_image_name, tag)
if not digest:
raise DockerscanError("> Can't obtain digest reference for selected "
"image / tag")
try:
if digest:
# If digest found -> remote image is not a regex. Then remove it
d.del_alias(digest)
removed.add(remote_image_name)
return removed
except requests.exceptions.HTTPError:
raise DockerscanError("> Registry does not support delete "
"operations. Default Docker Registry does not "
"support deletion. For more information see: "
"https://docs.docker.com/registry/"
"configuration/")
def __init__(self,
host,
repo,
repos_root=None,
auth=None,
insecure=False,
auth_host=None):
self._dxf = DXF(host, repo, self._wrap_auth(auth), insecure, auth_host)
self._repo_root = path.join(
repos_root if repos_root else path.join(getcwd(), 'dtuf_repos'),
repo)
def get_tag(self, repo, tag):
try:
tag_info = {}
dxf = DXF(REGISTRY_ADDRESS, repo)
digest = dxf.get_digest(tag)
response = self.request_registry(self.GET_LAYER_TEMPLATE.format(
url=REGISTRY_V2_API_ADDRESS, repo=repo, digest=digest),
method='HEAD')
if response.status == 200:
manifest = self.get_manifest(repo, tag)
tag_info['Tag'] = tag
tag_info['Created'] = manifest.get_created_date()
tag_info['Entrypoint'] = manifest.get_entrypoint()
tag_info['DockerVersion'] = manifest.get_docker_version()
tag_info['ExposedPorts'] = manifest.get_exposed_ports()
tag_info['Volumes'] = manifest.get_volumes()
return tag_info
else:
return None
except Exception as ex:
LOGGER.error(ex)
def confirm_registry_asset(repo, pointer):
"""
Validates a registry asset by querying the remote registry.
Returns the registry manifest at the given pointer, and a pullable image string.
"""
host, username, api_key = get_registry_connectivity()
image = host + '/' + repo + '@' + pointer
log.debug('Validating image ' + image + '...')
# Authenticate via callable
def auth(dxf, response):
log.debug('Authenticating to registry...')
dxf.authenticate(username, api_key, response=response)
log.debug('Auth to registry successful')
# Connects over internal network with override host and autogenerated TLS
dxf = DXF(host, repo, auth, tlsverify=False)
# Fetch and sanity check the blob size
blob_id = str(dxf.get_digest(pointer))
if dxf.blob_size(blob_id) > (10 * 1000 * 1000): # 10 MB to bytes
raise Exception(
'Manifest is larger than 10 MB. Possible registry error?')
# Pull and assemble the manifest
raw_blob, _ = dxf.pull_blob(blob_id, size=True)
manifest = json.loads(''.join(raw_blob))
# Compatibility checks for the gears platform
if manifest['architecture'] != 'amd64':
raise Exception("Architecture must be amd64")
if manifest['os'] != 'linux':
raise Exception("Os must be linux")
return manifest, image
def delete(self, _, **kwargs):
"""
@api {delete} /registry/repository/<str:repo>/<str:tag>/ Delete an image
@apiName DeleteImage
@apiGroup RegistryManager
@apiVersion 0.1.0
@apiPermission admin
@apiSuccess {Object} payload Success payload is empty
@apiUse APIHeader
@apiUse Success
@apiUse OperationFailed
@apiUse Unauthorized
"""
try:
repo = kwargs.get('repo')
tag = kwargs.get('tag')
dxf = DXF(REGISTRY_ADDRESS, repo)
digest = dxf.get_digest(tag)
dxf.del_blob(digest)
return JsonResponse(RESPONSE.SUCCESS)
except Exception as ex:
LOGGER.exception(ex)
return JsonResponse(RESPONSE.OPERATION_FAILED)
def upload(self, filename, md, repo):
try:
ImageModel.objects.filter(hashid=md).update(
status=ImageStatusCode.UPLOADING)
dxf = DXF(REGISTRY_ADDRESS, repo)
status = DockerTarUploader(dxf).upload_tar(self.basePath +
filename)
LOGGER.info("upload status")
LOGGER.info(status)
if os.path.exists(self.basePath + filename):
os.remove(self.basePath + filename)
LOGGER.info("done upload")
ImageModel.objects.filter(hashid=md).update(
status=ImageStatusCode.SUCCEEDED)
except Exception as ex:
LOGGER.exception(ex)
ImageModel.objects.filter(hashid=md).update(
status=ImageStatusCode.FAILED)
def _clean_repository(repository):
logger.info('{0} Processing "{1}" {0}'.format("*" * 2, repository["name"]))
dxf = DXF(registry_host, repository["name"], _auth)
tags = _fetch_tags(dxf)
tags_groups = []
for tag_rule in repository["tags"]:
pattern = re.compile(tag_rule["pattern"])
matched = {}
for tag, created in list(tags.items()):
if pattern.match(tag):
matched[tag] = created
del tags[tag]
if matched:
tags_groups.append({"rule": tag_rule, "tags": matched})
for tag_group in tags_groups:
_clean_tags(dxf, tag_group["rule"], tag_group["tags"])
def loadDXF(self, filename): try: dxf = DXF(filename,"r") except: return False dxf.readFile() dxf.close() for name in dxf.layers.keys(): layer = dxf.sortLayer(name) path = Path(name) path.fromLayer(layer) path.removeZeroLength() opath = path.order() changed = True while changed: longest = opath[0] for p in opath: if longest.length() > p.length(): longest = p opath.remove(longest) changed = longest.mergeLoops(opath) self.fromPath(longest) self.fromPath(opath) return True
# generate the basis function for this value of t rbasis(k,t,npts,x,h,nbasis) # generate a point on the curve for j in range(1,4): jcount = j p[icount+j] = 0.0 # Do local matrix multiplication for i in range(1,npts+1): p[icount+j] += nbasis[i]*b[jcount] jcount += 3 icount += 3 t += step # ============================================================================= if __name__ == "__main__": SPLINE_SEGMENTS = 20 from dxf import DXF # from dxfwrite.algebra import CubicSpline, CubicBezierCurve dxf = DXF(sys.argv[1],"r") dxf.readFile() dxf.close() for name,layer in dxf.layers.items(): for entity in layer.entities: if entity.type == "SPLINE": xy = zip(entity[10], entity[20]) x,y = spline2Polyline(xy, int(entity[71]), True, SPLINE_SEGMENTS) #for a,b in zip(x,y): # print a,b
def saveDXF(self, filename): try: dxf = DXF(filename,"w") except: return False dxf.writeHeader() for block in self.blocks: name = block.name() for line in block: cmds = self.cnc.parseLine(line) if cmds is None: continue self.cnc.processPath(cmds) if self.cnc.gcode == 1: # line dxf.line(self.cnc.x, self.cnc.y, self.cnc.xval, self.cnc.yval, name) elif self.cnc.gcode in (2,3): # arc xc,yc,zc = self.cnc.motionCenter() sphi = math.atan2(self.cnc.y-yc, self.cnc.x-xc) ephi = math.atan2(self.cnc.yval-yc, self.cnc.xval-xc) if self.cnc.gcode==2: if ephi<=sphi+1e-10: ephi += 2.0*math.pi dxf.arc(xc,yc,self.cnc.rval, math.degrees(ephi), math.degrees(sphi),name) else: if ephi<=sphi+1e-10: ephi += 2.0*math.pi dxf.arc(xc,yc,self.cnc.rval, math.degrees(sphi), math.degrees(ephi),name) self.cnc.motionPathEnd() dxf.writeEOF() dxf.close() return True
from os import path
import sys
sys.path.append(path.abspath(path.join(path.dirname(__file__), '..')))
os.chdir('/tmp')
from dxf import DXF
def auth(dxf, response):
dxf.authenticate(os.environ['DOCKER_REG_USERNAME'],
os.environ['DOCKER_REG_PASSWORD'],
response=response)
dxf = DXF(os.environ.get('DOCKER_REG_HOST', 'registry-1.docker.io'),
os.environ['DOCKER_REG_REPO'],
auth)
with open('logger.dat', 'wb') as f:
f.write(b'2015-05 11\n')
dgst = dxf.push_blob('logger.dat')
dxf.set_alias('may15-readings', dgst)
assert dxf.get_alias('may15-readings') == [dgst]
s = b''
for chunk in dxf.pull_blob(dgst):
s += chunk
assert s == b'2015-05 11\n'
print(s)
class DockerInjector:
"""
The main class of the Docker injector which injects new versions of a layer into
OCI images retrieved from an OCI compliant distribution API
"""
def __init__(self, host, repo, alias, user, pw):
"""
Initializes the injector by downloading both the slim and the fat image manifest
"""
def auth(dxf, response):
dxf.authenticate(user, pw, response=response)
self.dxfObject = DXF(host, repo, tlsverify=True, auth=auth)
self.image_manifest = self._get_manifest(alias)
self.fat_manifest = self._get_fat_manifest(self.image_manifest)
def setup(self, push_alias):
"""
Sets an image up for layer injection
"""
tar_digest, gz_digest = self._build_init_tar()
layer_size = self.dxfObject.blob_size(gz_digest)
self.fat_manifest.init_cvmfs_layer(tar_digest, gz_digest)
fat_man_json = self.fat_manifest.as_JSON()
manifest_digest = hash_bytes(bytes(fat_man_json, 'utf-8'))
self.dxfObject.push_blob(data=fat_man_json, digest=manifest_digest)
manifest_size = self.dxfObject.blob_size(manifest_digest)
self.image_manifest.init_cvmfs_layer(gz_digest, layer_size,
manifest_digest, manifest_size)
image_man_json = self.image_manifest.as_JSON()
self.dxfObject.set_manifest(push_alias, image_man_json)
def unpack(self, dest_dir):
"""
Unpacks the current version of a layer into the dest_dir directory in order to update it
"""
if not self.fat_manifest.is_cvmfs_prepared():
os.makedirs(dest_dir + "/cvmfs", exist_ok=True)
return
gz_digest = self.fat_manifest.get_gz_digest()
# Write out tar file
decompress_object = zlib.decompressobj(16 + zlib.MAX_WBITS)
try:
chunk_it = self.dxfObject.pull_blob(gz_digest)
except HTTPError as e:
if e.response.status_code == 404:
print("ERROR: The hash of the CVMFS layer must have changed.")
print(
"This is a known issue. Please do not reupload images to other repositories after CVMFS injection!"
)
else:
raise e
with tempfile.TemporaryFile() as tmp_file:
for chunk in chunk_it:
tmp_file.write(decompress_object.decompress(chunk))
tmp_file.write(decompress_object.flush())
tmp_file.seek(0)
tar = tarfile.TarFile(fileobj=tmp_file)
tar.extractall(dest_dir)
tar.close()
def update(self, src_dir, push_alias):
"""
Packs and uploads the contents of src_dir as a layer and injects the layer into the image.
The new layer version is stored under the tag push_alias
"""
if not self.fat_manifest.is_cvmfs_prepared():
print("Preparing image for CVMFS injection...")
self.setup(push_alias)
with tempfile.NamedTemporaryFile(delete=False) as tmp_file:
print("Bundling file into tar...")
_, error = exec_bash("tar --xattrs -C " + src_dir + " -cvf " +
tmp_file.name + " .")
if error:
raise RuntimeError("Failed to tar with error " + str(error))
tar_digest = hash_file(tmp_file.name)
print("Bundling tar into gz...")
gz_dest = tmp_file.name + ".gz"
_, error = exec_bash("gzip " + tmp_file.name)
if error:
raise RuntimeError("Failed to tar with error " + str(error))
print("Uploading...")
gz_digest = self.dxfObject.push_blob(gz_dest)
os.unlink(gz_dest)
print("Refreshing manifests...")
old_gz_digest = self.fat_manifest.get_gz_digest()
layer_size = self.dxfObject.blob_size(gz_digest)
self.fat_manifest.inject(tar_digest, gz_digest)
fat_man_json = self.fat_manifest.as_JSON()
manifest_digest = hash_bytes(bytes(fat_man_json, 'utf-8'))
self.dxfObject.push_blob(data=fat_man_json, digest=manifest_digest)
manifest_size = self.dxfObject.blob_size(manifest_digest)
self.image_manifest.inject(old_gz_digest, gz_digest, layer_size,
manifest_digest, manifest_size)
image_man_json = self.image_manifest.as_JSON()
self.dxfObject.set_manifest(push_alias, image_man_json)
def _get_manifest(self, alias):
return ImageManifest(self.dxfObject.get_manifest(alias))
def _get_fat_manifest(self, image_manifest):
fat_manifest = ""
(readIter, _) = self.dxfObject.pull_blob(
self.image_manifest.get_fat_manif_digest(),
size=True,
chunk_size=4096)
for chunk in readIter:
fat_manifest += str(chunk)[2:-1]
fat_manifest = fat_manifest.replace("\\\\", "\\")
return FatManifest(fat_manifest)
def _build_init_tar(self):
"""
Builds an empty /cvmfs tar and uploads it to the registry
:rtype: tuple
:returns: Tuple containing the tar digest and gz digest
"""
ident = self.image_manifest.get_fat_manif_digest()[5:15]
tmp_name = "/tmp/injector-" + ident
os.makedirs(tmp_name + "/cvmfs", exist_ok=True)
tar_dest = "/tmp/" + ident + ".tar"
_, error = exec_bash("tar --xattrs -C " + tmp_name + " -cvf " +
tar_dest + " .")
if error:
print("Failed to tar with error " + str(error))
return
tar_digest = hash_file(tar_dest)
_, error = exec_bash("gzip -n " + tar_dest)
if error:
print("Failed to tar with error " + str(error))
return
gz_dest = tar_dest + ".gz"
gzip_digest = self.dxfObject.push_blob(tar_dest + ".gz")
# Cleanup
os.rmdir(tmp_name + "/cvmfs")
os.rmdir(tmp_name)
os.unlink(gz_dest)
return (tar_digest, gzip_digest)
dest='destination')
parser.add_argument('-i', '--insecure', action='store_false', dest='tlsverify')
parser.set_defaults(tlsverify=True)
args = parser.parse_args()
source = DXFBase(args.source.address,
auth=args.source.auth,
tlsverify=args.tlsverify)
source_repositories = source.list_repos()
destination = DXFBase(args.destination.address,
auth=args.destination.auth,
tlsverify=args.tlsverify)
destination_repositories = destination.list_repos()
for repository in source_repositories:
source_repository = DXF.from_base(source, repository)
destination_repository = DXF.from_base(destination, repository)
try:
tags = source_repository.list_aliases()
except DXFUnauthorizedError:
print(
f'Skipping {repository} after being denied access to source repository'
)
continue
for tag in tags:
manifest_string, response = source_repository.get_manifest_and_response(
tag)
manifest = response.json()
source_layers = [manifest['config'], *manifest['layers']]
# generate a point on the curve
for j in range(1, 4):
jcount = j
p[icount + j] = 0.0
# Do local matrix multiplication
for i in range(1, npts + 1):
p[icount + j] += nbasis[i] * b[jcount]
jcount += 3
icount += 3
t += step
# =============================================================================
if __name__ == "__main__":
SPLINE_SEGMENTS = 20
from dxf import DXF
# from dxfwrite.algebra import CubicSpline, CubicBezierCurve
dxf = DXF(sys.argv[1], "r")
dxf.readFile()
dxf.close()
for name, layer in dxf.layers.items():
for entity in layer.entities:
if entity.type == "SPLINE":
xy = zip(entity[10], entity[20])
x, y = spline2Polyline(xy, int(entity[71]), True,
SPLINE_SEGMENTS)
#for a,b in zip(x,y):
# print a,b
def cost_part():
# PART NUMBER
partNoItems = [{
'type': 'input',
'name': 'partNumber',
'elements': 'PART NUMBER: '
}]
partNo = View(title='PART COST MENU', version='input', items=partNoItems)
print(type(partNo.answer[0]))
# MATERIAL
# materialDF = Server().find('standards')['material'][0]
# material = dfToList(materialDF, 'materialName')
matItems = [{
'type': 'list',
'name': 'material',
'message': 'PART MATERIAL',
'elements': ['carbon steel', 'stainless']
}]
mat = View(title='PART COST MENU', version='input', items=matItems)
# GAUGE
# gaugeDF = Server().find('standards')['gauge'][0]
# gauge = dfToList(gaugeDF, 'gaugeName')
gaugeItems = [{
'type': 'list',
'name': 'gauge',
'message': '',
'elements': ['18GA', '16GA']
}]
ga = View(title='PART COST MENU', version='input', items=gaugeItems)
# BLANK
dxf = DXF(partNo.answer[0])
blankx, blanky = dxf.blank()
length = dxf.laserPath()
blankInfo = [
f'BLANK WIDTH: {blankx}', f'BLANK HEIGHT: {blanky}',
f'BLANK LASER PATH: {length}'
]
blankItems = [{
'type': 'print',
'name': 'blankInfo',
'elements': blankInfo
}, {
'type': 'list',
'name': 'blank',
'message': 'BLANK INFO CORRECT: ',
'elements': ['YES', 'NO']
}]
blank = View(title='PART COST MENU', version='input', items=blankItems)
if blank.answer[0] == 'YES':
blank = [blankx, blanky, length]
else:
blankItems = [
{
'type': 'input',
'name': 'width',
'elements': 'BLANK WIDTH: '
},
{
'type': 'input',
'name': 'height',
'elements': 'BLANK HEIGHT: '
},
{
'type': 'input',
'name': 'laserPath',
'elements': 'LASER PATH LENGTH: '
},
{
'type': 'input',
'name': 'weight',
'elements': 'BLANK WEIGHT: '
},
]
blank = View(title='PART COST MENU', version='input', items=blankItems)
# PROCESS CATEGORY
# processCategoryDF = Server().find('standards')['processCategory'][0]
# processCategory = dfToList(processCategoryDF, 'processCategoryName')
# workCenterIDDF = Server().find('standards')['workCenter'][0]
# workCenterID = dfToList(workCenterIDDF, 'workCenterID')
addProcess = True
processCount = 0
processes = []
while addProcess:
processItems = [{
'type': 'input',
'name': 'operationNumber',
'elements': 'OPERATION NUMBER: '
}, {
'type': 'input',
'name': 'operationName',
'elements': 'OPERATION NAME: '
}, {
'type': 'list',
'name': 'processCategoryName',
'message': 'PROCESS CATEGORY: ',
'elements': ['PRESS BRAKE', 'LASER']
}, {
'type': 'list',
'name': 'workCenterID',
'message': 'WORK CENTER ID: ',
'elements': ['1002', '25309']
}, {
'type': 'input',
'name': 'setup',
'elements': 'SETUP TIME: '
}, {
'type': 'input',
'name': 'operationTime',
'elements': 'TIME PER OPERATION: '
}, {
'type': 'input',
'name': 'operationQuantity',
'elements': 'OPERATION QUANTITY: '
}, {
'type': 'list',
'name': 'addProcess',
'message': 'ADD ANOTHER PROCESS: ',
'elements': ['YES', 'NO']
}]
process = View(title='PART COST MENU',
version='input',
items=processItems)
processes.append(process.answer)
if process.answer[7] == 'YES':
addProcess = True
processCount += 1
else:
addProcess = False
print(partNo.answer)
print(mat.answer)
print(ga.answer)
print(blank)
print(processes)
def registry(self, repository=''):
return DXF(self._registry_host,
repository,
auth=self._auth,
insecure=self._registry_url.scheme == 'http',
tlsverify=not self._registry_no_verify)
class DockerInjector:
"""
The main class of the Docker injector which injects new versions of a layer into
OCI images retrieved from an OCI compliant distribution API
"""
def __init__(self, host, repo, alias, user, pw):
"""
Initializes the injector by downloading both the slim and the fat image manifest
"""
def auth(dxf, response):
dxf.authenticate(user, pw, response=response)
self.dxfObject = DXF(host, repo, tlsverify=True, auth=auth)
self.image_manifest = self._get_manifest(alias)
self.fat_manifest = self._get_fat_manifest(self.image_manifest)
def setup(self, push_alias):
"""
Sets an image up for layer injection
"""
tar_digest, gz_digest = self._build_init_tar()
layer_size = self.dxfObject.blob_size(gz_digest)
self.fat_manifest.init_cvmfs_layer(tar_digest, gz_digest)
fat_man_json = self.fat_manifest.as_JSON()
manifest_digest = hash_bytes(bytes(fat_man_json, 'utf-8'))
self.dxfObject.push_blob(data=fat_man_json, digest=manifest_digest)
manifest_size = self.dxfObject.blob_size(manifest_digest)
self.image_manifest.init_cvmfs_layer(gz_digest, layer_size, manifest_digest, manifest_size)
image_man_json = self.image_manifest.as_JSON()
self.dxfObject.set_manifest(push_alias, image_man_json)
def unpack(self, dest_dir):
"""
Unpacks the current version of a layer into the dest_dir directory in order to update it
"""
if not self.fat_manifest.is_cvmfs_prepared():
os.makedirs(dest_dir+"/cvmfs", exist_ok=True)
return
gz_digest = self.fat_manifest.get_gz_digest()
# Write out tar file
decompress_object = zlib.decompressobj(16+zlib.MAX_WBITS)
try:
chunk_it = self.dxfObject.pull_blob(gz_digest)
except HTTPError as e:
if e.response.status_code == 404:
print("ERROR: The hash of the CVMFS layer must have changed.")
print("This is a known issue. Please do not reupload images to other repositories after CVMFS injection!")
else:
raise e
with tempfile.TemporaryFile() as tmp_file:
for chunk in chunk_it:
tmp_file.write(decompress_object.decompress(chunk))
tmp_file.write(decompress_object.flush())
tmp_file.seek(0)
tar = tarfile.TarFile(fileobj=tmp_file)
tar.extractall(dest_dir)
tar.close()
def update(self, src_dir, push_alias):
"""
Packs and uploads the contents of src_dir as a layer and injects the layer into the image.
The new layer version is stored under the tag push_alias
"""
if not self.fat_manifest.is_cvmfs_prepared():
print("Preparing image for CVMFS injection...")
self.setup(push_alias)
with tempfile.NamedTemporaryFile(delete=False) as tmp_file:
print("Bundling file into tar...")
_, error = exec_bash("tar --xattrs -C "+src_dir+" -cvf "+tmp_file.name+" .")
if error:
raise RuntimeError("Failed to tar with error " + str(error))
tar_digest = hash_file(tmp_file.name)
print("Bundling tar into gz...")
gz_dest = tmp_file.name+".gz"
_, error = exec_bash("gzip "+tmp_file.name)
if error:
raise RuntimeError("Failed to tar with error " + str(error))
print("Uploading...")
gz_digest = self.dxfObject.push_blob(gz_dest)
os.unlink(gz_dest)
print("Refreshing manifests...")
old_gz_digest = self.fat_manifest.get_gz_digest()
layer_size = self.dxfObject.blob_size(gz_digest)
self.fat_manifest.inject(tar_digest, gz_digest)
fat_man_json = self.fat_manifest.as_JSON()
manifest_digest = hash_bytes(bytes(fat_man_json, 'utf-8'))
self.dxfObject.push_blob(data=fat_man_json, digest=manifest_digest)
manifest_size = self.dxfObject.blob_size(manifest_digest)
self.image_manifest.inject(old_gz_digest, gz_digest, layer_size, manifest_digest, manifest_size)
image_man_json = self.image_manifest.as_JSON()
self.dxfObject.set_manifest(push_alias, image_man_json)
def _get_manifest(self, alias):
return ImageManifest(self.dxfObject.get_manifest(alias))
def _get_fat_manifest(self, image_manifest):
fat_manifest = ""
(readIter, _) = self.dxfObject.pull_blob(self.image_manifest.get_fat_manif_digest(), size=True, chunk_size=4096)
for chunk in readIter:
fat_manifest += str(chunk)[2:-1]
fat_manifest = fat_manifest.replace("\\\\","\\")
return FatManifest(fat_manifest)
def _build_init_tar(self):
"""
Builds an empty /cvmfs tar and uploads it to the registry
:rtype: tuple
:returns: Tuple containing the tar digest and gz digest
"""
ident = self.image_manifest.get_fat_manif_digest()[5:15]
tmp_name = "/tmp/injector-"+ident
os.makedirs(tmp_name+"/cvmfs", exist_ok=True)
tar_dest = "/tmp/"+ident+".tar"
_, error = exec_bash("tar --xattrs -C "+tmp_name+" -cvf "+tar_dest+" .")
if error:
print("Failed to tar with error " + str(error))
return
tar_digest = hash_file(tar_dest)
_, error = exec_bash("gzip -n "+tar_dest)
if error:
print("Failed to tar with error " + str(error))
return
gz_dest = tar_dest+".gz"
gzip_digest = self.dxfObject.push_blob(tar_dest+".gz")
# Cleanup
os.rmdir(tmp_name+"/cvmfs")
os.rmdir(tmp_name)
os.unlink(gz_dest)
return (tar_digest, gzip_digest)
from os import path
import sys
sys.path.append(path.abspath(path.join(path.dirname(__file__), '..')))
os.chdir('/tmp')
from dxf import DXF
def auth(dxf, response):
dxf.authenticate(os.environ['DOCKER_REG_USERNAME'],
os.environ['DOCKER_REG_PASSWORD'],
response=response)
dxf = DXF(os.environ.get('DOCKER_REG_HOST', 'registry-1.docker.io'),
os.environ['DOCKER_REG_REPO'],
auth)
with open('logger.dat', 'wb') as f:
f.write(b'2015-05 11\n')
dgst = dxf.push_blob('logger.dat')
dxf.set_alias('may15-readings', dgst)
assert dxf.get_alias('may15-readings') == [dgst]
s = b''
for chunk in dxf.pull_blob(dgst):
s += chunk
assert s == b'2015-05 11\n'
print(s)
sys.stdout.write("Please respond with 'yes' or 'no' "
"(or 'y' or 'n').\n")
def auth(dxf, response):
dxf.authenticate(os.environ.get("DOCKER_USERNAME"),
os.environ.get("DOCKER_TOKEN"),
response=response)
if __name__ == '__main__':
try:
logging.basicConfig(level=logging.INFO)
parsedArgs = parseArguments()
logging.info('Call arguments given: %s' % sys.argv[1:])
dxf = DXF('registry-1.docker.io',
'schulcloud/{}'.format(parsedArgs.repo), auth)
if hasattr(parsedArgs, 'add_tag') and parsedArgs.add_tag == True:
logging.info("Adding tag '{}' to '{}' in repository '{}'".format(
parsedArgs.new_tag, parsedArgs.exist_tag, parsedArgs.repo))
manifest = dxf.get_manifest('{}'.format(parsedArgs.exist_tag))
dxf.set_manifest('{}'.format(parsedArgs.new_tag), manifest)
else:
logging.info("Deleting tag '{}' in repository '{}'".format(
parsedArgs.exist_tag, parsedArgs.repo))
suretodel = query_yes_no(
"Are you sure to delete tag '{}' from '{}'".format(
parsedArgs.exist_tag, parsedArgs.repo))
if suretodel:
dxf.del_alias(parsedArgs.exist_tag)
exit(0)
