def _clean_dir(self):
"""
Image removal specific cleaning function,
to relink the "latest" image version
if the removed directory was the previous "latest" version.
"""
super()._clean_dir()
link_latest_image(os.path.join(BASE_IMAGE_DIR,
self.config["image"]["name"]))
def _link_latest_image(self):
"""
Link the latest version of the image to ``/latest``
"""
image_name_dir = os.path.join(BASE_IMAGE_DIR, self.name)
latest_image = os.path.join(image_name_dir, "latest")
if not os.path.exists(latest_image):
# Assume this image is the latest if the latest symlink is missing
os.symlink(self.image_path, latest_image)
self.is_latest = True
return
if not os.path.islink(latest_image):
# This isn't technically fatal, but should raise a warning
logger.warning(
"Latest image is not a symlink, not trying to link")
return
self.is_latest = link_latest_image(image_name_dir)
