def download_docker_image(docker_image, target_file, cache=None):
try:
from docker.client import Client
from docker.utils import kwargs_from_env
kwargs = kwargs_from_env()
kwargs['tls'].assert_hostname = False
docker_cli = Client(**kwargs)
image = docker_cli.get_image(docker_image)
image_tar = open(target_file,'w')
image_tar.write(image.data)
image_tar.close()
except Exception as e:
if cache is not None:
cached_file = os.path.join(cache, docker_image.lower().replace('/','-').replace(':','-') + '.tgz')
if os.path.isfile(cached_file):
print 'using cached version of', docker_image
urllib.urlretrieve(cached_file, target_file)
return
print >> sys.stderr, docker_image, 'not found in cache', cache
sys.exit(1)
if isinstance(e, KeyError):
print >> sys.stderr, 'docker not configured on this machine (or environment variables are not properly set)'
else:
print >> sys.stderr, docker_image, 'not found on local machine'
print >> sys.stderr, 'you must either pull the image, or download it and use the --docker-cache option'
sys.exit(1)
def download_docker_image(docker_image, target_file, cache=None):
try:
from docker.client import Client
from docker.utils import kwargs_from_env
kwargs = kwargs_from_env()
kwargs['tls'] = False
docker_cli = Client(**kwargs)
image = docker_cli.get_image(docker_image)
image_tar = open(target_file,'w')
image_tar.write(image.data)
image_tar.close()
except Exception as e:
if cache is not None:
cached_file = os.path.join(cache, docker_image.lower().replace('/','-').replace(':','-') + '.tgz')
if os.path.isfile(cached_file):
print 'using cached version of', docker_image
urllib.urlretrieve(cached_file, target_file)
return
print >> sys.stderr, docker_image, 'not found in cache', cache
sys.exit(1)
if isinstance(e, KeyError):
print >> sys.stderr, 'docker not configured on this machine (or environment variables are not properly set)'
else:
print >> sys.stderr, docker_image, 'not found on local machine'
print >> sys.stderr, 'you must either pull the image, or download it and use the --docker-cache option'
sys.exit(1)
def download_docker_image(docker_image, target_file): from docker.client import Client from docker.utils import kwargs_from_env kwargs = kwargs_from_env() kwargs['tls'].assert_hostname = False docker_cli = Client(**kwargs) image = docker_cli.get_image(docker_image) image_tar = open(target_file,'w') image_tar.write(image.data) image_tar.close()
def download_docker_image(docker_image, target_file):
from docker.client import Client
try: # First attempt boot2docker, because it is fail-fast
from docker.utils import kwargs_from_env
kwargs = kwargs_from_env()
kwargs['tls'].assert_hostname = False
docker_cli = Client(**kwargs)
except KeyError as e: # Assume this means we are not using boot2docker
docker_cli = Client(base_url='unix://var/run/docker.sock', tls=False)
image = docker_cli.get_image(docker_image)
image_tar = open(target_file, 'w')
image_tar.write(image.data)
image_tar.close()
def download_docker_image(docker_image, target_file): from docker.client import Client try: # First attempt boot2docker, because it is fail-fast from docker.utils import kwargs_from_env kwargs = kwargs_from_env() kwargs['tls'].assert_hostname = False docker_cli = Client(**kwargs) except KeyError as e: # Assume this means we are not using boot2docker docker_cli = Client(base_url='unix://var/run/docker.sock', tls=False) image = docker_cli.get_image(docker_image) image_tar = open(target_file,'w') image_tar.write(image.data) image_tar.close()
def download(url, filename, cache=None):
if cache is not None:
basename = os.path.basename(filename)
cachename = os.path.join(cache, basename)
if os.path.isfile(cachename):
print('- using cached version of', basename)
shutil.copy(cachename, filename)
return
if url.startswith("http:") or url.startswith("https"):
# [mboldt:20160908] Using urllib.urlretrieve gave an "Access
# Denied" page when trying to download docker boshrelease.
# I don't know why. requests.get works. Do what works.
response = requests.get(url, stream=True)
response.raise_for_status()
with open(filename, 'wb') as file:
for chunk in response.iter_content(chunk_size=1024):
if chunk:
file.write(chunk)
elif url.startswith("docker:"):
docker_image = url.lstrip("docker:").lstrip("/").lstrip("/")
try:
from docker.client import Client
from docker.utils import kwargs_from_env
kwargs = kwargs_from_env()
kwargs['tls'] = False
docker_cli = Client(**kwargs)
image = docker_cli.get_image(docker_image)
image_tar = open(filename,'w')
image_tar.write(image.data)
image_tar.close()
except KeyError as e:
print('docker not configured on this machine (or environment variables are not properly set)', file=sys.stderr)
sys.exit(1)
except:
print(docker_image, 'not found on local machine', file=sys.stderr)
print('you must either pull the image, or download it and use the --cache option', file=sys.stderr)
sys.exit(1)
else:
shutil.copy(url, filename)
def download(url, filename, cache=None):
if cache is not None:
basename = os.path.basename(filename)
cachename = os.path.join(cache, basename)
if os.path.isfile(cachename):
print('- using cached version of', basename)
shutil.copy(cachename, filename)
return
# Special url to find a file associated with a github release.
# github://cf-platform-eng/meta-buildpack/meta-buildpack.tgz
# will find the file named meta-buildpack-0.0.3.tgz in the latest
# release for https://github.com/cf-platform-eng/meta-buildpack
if url.startswith("github:"):
repo_name = url.lstrip("github:").lstrip("/").lstrip("/")
file_name = os.path.basename(repo_name)
repo_name = os.path.dirname(repo_name)
url = "https://api.github.com/repos/" + repo_name + "/releases/latest"
response = requests.get(url, stream=True)
response.raise_for_status()
release = response.json()
assets = release.get('assets', [])
url = None
pattern = re.compile('.*\\.'.join(file_name.rsplit('.', 1))+'\\Z')
for asset in assets:
if pattern.match(asset['name']) is not None:
url = asset['browser_download_url']
break
if url is None:
print('no matching asset found for repo', repo_name, 'file', file_name, file=sys.stderr)
sys.exit(1)
# Fallthrough intentional, we now proceed to download the URL we found
if url.startswith("http:") or url.startswith("https"):
# [mboldt:20160908] Using urllib.urlretrieve gave an "Access
# Denied" page when trying to download docker boshrelease.
# I don't know why. requests.get works. Do what works.
response = requests.get(url, stream=True)
response.raise_for_status()
with open(filename, 'wb') as file:
for chunk in response.iter_content(chunk_size=1024):
if chunk:
file.write(chunk)
elif url.startswith("docker:"):
docker_image = url.lstrip("docker:").lstrip("/").lstrip("/")
try:
from docker.client import Client
from docker.utils import kwargs_from_env
kwargs = kwargs_from_env()
kwargs['tls'] = False
docker_cli = Client(**kwargs)
image = docker_cli.get_image(docker_image)
image_tar = open(filename,'w')
image_tar.write(image.data)
image_tar.close()
except KeyError as e:
print('docker not configured on this machine (or environment variables are not properly set)', file=sys.stderr)
sys.exit(1)
except:
print(docker_image, 'not found on local machine', file=sys.stderr)
print('you must either pull the image, or download it and use the --cache option', file=sys.stderr)
sys.exit(1)
elif os.path.isdir(url):
shutil.copytree(url, filename)
else:
shutil.copy(url, filename)
def download(url, filename, cache=None):
if cache is not None:
basename = os.path.basename(filename)
cachename = os.path.join(cache, basename)
if os.path.isfile(cachename):
print('- using cached version of', basename)
shutil.copy(cachename, filename)
return
# Special url to find a file associated with a github release.
# github://cf-platform-eng/meta-buildpack/meta-buildpack.tgz
# will find the file named meta-buildpack-0.0.3.tgz in the latest
# release for https://github.com/cf-platform-eng/meta-buildpack
if url.startswith("github:"):
repo_name = url.lstrip("github:").lstrip("/").lstrip("/")
file_name = os.path.basename(repo_name)
repo_name = os.path.dirname(repo_name)
url = "https://api.github.com/repos/" + repo_name + "/releases/latest"
response = requests.get(url, stream=True)
response.raise_for_status()
release = response.json()
assets = release.get('assets', [])
url = None
pattern = re.compile('.*\\.'.join(file_name.rsplit('.', 1))+'\\Z')
for asset in assets:
if pattern.match(asset['name']) is not None:
url = asset['browser_download_url']
break
if url is None:
print('no matching asset found for repo', repo_name, 'file', file_name, file=sys.stderr)
sys.exit(1)
# Fallthrough intentional, we now proceed to download the URL we found
if url.startswith("http:") or url.startswith("https"):
# [mboldt:20160908] Using urllib.urlretrieve gave an "Access
# Denied" page when trying to download docker boshrelease.
# I don't know why. requests.get works. Do what works.
response = requests.get(url, stream=True)
response.raise_for_status()
with open(filename, 'wb') as file:
for chunk in response.iter_content(chunk_size=1024):
if chunk:
file.write(chunk)
elif url.startswith("docker:"):
docker_image = url.lstrip("docker:").lstrip("/").lstrip("/")
try:
from docker.client import Client
from docker.utils import kwargs_from_env
kwargs = kwargs_from_env()
kwargs['tls'] = False
docker_cli = Client(**kwargs)
image = docker_cli.get_image(docker_image)
image_tar = open(filename,'w')
image_tar.write(image.data)
image_tar.close()
except KeyError as e:
print('docker not configured on this machine (or environment variables are not properly set)', file=sys.stderr)
sys.exit(1)
except:
print(docker_image, 'not found on local machine', file=sys.stderr)
print('you must either pull the image, or download it and use the --cache option', file=sys.stderr)
sys.exit(1)
elif os.path.isdir(url):
shutil.copytree(url, filename)
else:
shutil.copy(url, filename)
