def build_from_spec(spec_file=None,
build_dir=None,
size=None,
sudopw=None,
build_folder=False,
debug=False):
'''build_from_spec will build a "spec" file in a "build_dir" and return the directory
:param spec_file: the spec file, called "Singuarity"
:param sudopw: the sudopw for Singularity, root should provide ''
:param build_dir: the directory to build in. If not defined, will use tmpdir.
:param size: the size of the image
:param build_folder: "build" the image into a folder instead. Default False
:param debug: ask for verbose output from builder
'''
if spec_file == None:
spec_file = "Singularity"
if build_dir == None:
build_dir = tempfile.mkdtemp()
bot.logger.debug("Building in directory %s", build_dir)
# Copy the spec to a temporary directory
bot.logger.debug("Spec file set to %s", spec_file)
spec_path = "%s/%s" % (build_dir, os.path.basename(spec_file))
bot.logger.debug("Spec file for build should be in %s", spec_path)
# If it's not already there
if not os.path.exists(spec_path):
shutil.copyfile(spec_file, spec_path)
image_path = "%s/image" % (build_dir)
# Run create image and bootstrap with Singularity command line tool.
if sudopw is not None:
cli = Singularity(sudopw=sudopw, debug=debug)
else:
cli = Singularity(debug=debug)
print("\nCreating and bootstrapping image...")
# Does the user want to "build" into a folder or image?
if build_folder == True:
bot.logger.debug("build_folder is true, creating %s", image_path)
os.mkdir(image_path)
else:
cli.create(image_path, size=size, sudo=True)
result = cli.bootstrap(image_path=image_path, spec_path=spec_path)
print(result)
# If image, rename based on hash
if build_folder == False:
version = get_image_file_hash(image_path)
final_path = "%s/%s" % (build_dir, version)
os.rename(image_path, final_path)
image_path = final_path
bot.logger.debug("Built image: %s", image_path)
return image_path
%runscript
exec "Hello World!"
'''
os.chdir(replicates)
with open('Singularity','w') as filey:
filey.writelines(runscript)
from singularity.cli import Singularity
cli = Singularity()
for num in range(0,100):
container_name = 'ubuntu-hello-world-%s.img' %(num)
cli.create(container_name)
cli.bootstrap(container_name,'Singularity')
# ALL SINGULARITY HUB
containers = shub.get_containers()
os.chdir(hub)
for container_name,container in containers.items():
for branch, manifest in container.items():
name = manifest['name'].replace('/','-')
uncompressed = "%s-%s.img" %(name,branch)
if not os.path.exists(uncompressed):
try:
image = shub.pull_container(manifest,
download_folder=hub,
name="%s-%s.img.gz" %(name,branch))