import uuid
import argparse
import tempfile
-from shutil import copy
+from shutil import copy, rmtree
def _text_checksum(text):
"""Calculate a digest string unique to the text content"""
labels = json.loads(resp)[0]["Config"].get("Labels", {})
return labels.get("com.qemu.dockerfile-checksum", "")
- def build_image(self, tag, dockerfile, df_path, quiet=True, argv=None):
+ def build_image(self, tag, docker_dir, dockerfile, quiet=True, argv=None):
if argv == None:
argv = []
- tmp_dir = tempfile.mkdtemp(prefix="docker_build")
- tmp_df = tempfile.NamedTemporaryFile(dir=tmp_dir, suffix=".docker")
+ tmp_df = tempfile.NamedTemporaryFile(dir=docker_dir, suffix=".docker")
tmp_df.write(dockerfile)
tmp_df.write("\n")
tmp_df.write("LABEL com.qemu.dockerfile-checksum=%s" %
_text_checksum(dockerfile))
tmp_df.flush()
+
self._do(["build", "-t", tag, "-f", tmp_df.name] + argv + \
- [tmp_dir],
+ [docker_dir],
quiet=quiet)
def image_matches_dockerfile(self, tag, dockerfile):
if dkr.image_matches_dockerfile(tag, dockerfile):
if not args.quiet:
print "Image is up to date."
- return 0
+ else:
+ # Create a docker context directory for the build
+ docker_dir = tempfile.mkdtemp(prefix="docker_build")
+
+ dkr.build_image(tag, docker_dir, dockerfile,
+ quiet=args.quiet, argv=argv)
+
+ rmtree(docker_dir)
- dkr.build_image(tag, dockerfile, args.dockerfile,
- quiet=args.quiet, argv=argv)
return 0
class CleanCommand(SubCommand):