def list_on_image(imagename, category):
psfilter = ps_filter(imagename)
if category == "containers":
print_call(["docker", "ps", "-a"]+psfilter)
elif category == "running":
print_call(["docker", "ps"]+psfilter)
elif category == "images":
# list of images associated with image name
imagelist = get_image_list_for(imagename)
# list of all images
res,sout,serr = run.call(["docker", "images"], silent=True)
stringlines = sout.strip().split(os.linesep)
# header
print("Relevant images: %s" % ', '.join(imagelist) )
print(stringlines[0])
# full image line, if image is in imagelist
for line in filter_string_lines(stringlines, imagelist):
print(line)
elif category == "last" or category == "stable":
print(store.read_data(category, imagename))
elif category == "jcl":
print(store.read_data("jockler-%s"%imagename, imagename))
else:
unknown_category(category)
def start(args):
if len(args) >= 2:
instance = args[0]
imagename = args[1]
doattach = common.item(args, 2, False)
if doattach == "attach":
doattach=True
if not instance in ["new", "last", "stable"]:
common.fail("Incorrect instance name. Please use 'new', 'last', or 'stable' ")
if instance == "new":
containername = start_new_container(imagename, doattach)
else:
containername = store.read_data(instance, imagename)
if containername:
start_container(imagename, containername, doattach)
else:
common.fail("No instance %s for image %s"%(instance, imagename))
elif len(args) == 1:
containername = args[0]
imagename = extract_image_name(containername)
if imagename:
start_container(imagename, containername)
else:
common.fail("Unknown. Use 'jockler start {new|last|stable} IMAGE' or 'jockler start CONTAINER'")
def list_container_volumes(imagename, instance):
if not instance in ["stable", "last"]:
common.fail("Invalid instance [%s] - use last or stable" % instance)
containername = store.read_data(instance, imagename)
if not containername:
common.fail("No candidate [%s] for image [%s]" % (instance, imagename))
print(os.linesep.join(mountdata_of(containername, "Name")))
def append_image_id(imagename, image_id):
imagelist = store.read_data("images", imagename)
if imagelist == None:
imagelist = ''
imagelist = imagelist.split(os.linesep)
imagelist.append(image_id)
common.remove_empty_strings(imagelist)
imagelist = list(set(imagelist))
store.write_data("images", imagename, os.linesep.join(imagelist))
def get_image_list_for(imagename):
#res,sout,serr = run.call(["docker", "ps", "-a", "--format", "{{.Image}}"] + ps_filter(imagename), silent=True)
#
#images = sout.strip().split(os.linesep)
#common.remove_empty_strings(images)
images = store.read_data("images", imagename)
if not images:
return []
images = list(set(images.split(os.linesep)))
return images
def cleanup(args):
if not common.args_check(args, 1):
common.fail(
"Remove all old containers and images, except for last and stable.\n\nUsage:\n\n jockler cleanup IMAGENAME"
)
imagename = args[0]
keep_images = []
keep_containers = []
for instance in ["stable", "last"]:
container = store.read_data(instance, imagename)
if container:
keep_images.append(imagename)
keep_containers.append(container)
remove([imagename], keep_images, keep_containers)
def do_volume_backup(imagename, systemname, destination="."):
containername = store.read_data("last", imagename)
if not containername:
common.fail("No candidate container for image [%s]" % imagename)
destination = os.path.abspath(destination)
mountpoints = volumes.mountdata_of(containername, "Destination")
archivename = "%s-as-of-%s.tar.gz" % (containername, common.timestring())
if systemname == "linux":
res, sout, serr = do_linux_volume_backup(containername, destination,
archivename, mountpoints)
elif systemname == "windows":
#TODO - need a windows version
common.fail("Not yet implemented")
else:
common.fail("Unkown system type [%s]" % systemname)
if res == 0:
print("Backup created in %s" %
os.path.sep.join([destination, archivename]))
else:
common.fail("Backup operation failed!")
def print_stable_container(imagename):
containername = store.read_data("stable", imagename)
if containername:
print(containername)
else:
print("No stable container marked for image [%s]"%imagename)
def read_options_file(imagename):
jclfile = jcl_name(imagename)
return store.read_data(jclfile, imagename)