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#27: prefix volume names with project name

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This commit is contained in:
Muayyad Alsadi 2019-08-14 18:22:36 +03:00
parent 14a46ce02a
commit 432097cb5f
1 changed files with 23 additions and 8 deletions
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31
podman-compose.py
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@ -51,6 +51,10 @@ def try_int(i, fallback=None):
dir_re = re.compile("^[~/\.]")
propagation_re=re.compile("^(?:z|Z|r?shared|r?slave|r?private)$")
# NOTE: if a named volume is used but not defined it gives
# ERROR: Named volume "so and so" is used in service "xyz" but no declaration was found in the volumes section.
# unless it's anon-volume
def parse_short_mount(mount_str, basedir):
mount_a = mount_str.split(':')
mount_opt_dict = {}
@ -61,6 +65,7 @@ def parse_short_mount(mount_str, basedir):
mount_src, mount_dst=None, mount_str
elif len(mount_a)==2:
mount_src, mount_dst = mount_a
# dest must start with /, otherwise it's option
if not mount_dst.startswith('/'):
mount_dst, mount_opt = mount_a
mount_src = None
@ -92,15 +97,25 @@ def parse_short_mount(mount_str, basedir):
raise ValueError("unknown mount option "+opt)
return dict(type=mount_type, source=mount_src, target=mount_dst, **mount_opt_dict)
def fix_mount_dict(mount_dict, srv_name, cnt_name):
def fix_mount_dict(mount_dict, proj_name, srv_name):
"""
in-place fix mount dictionary to add missing source
in-place fix mount dictionary to:
- add missing source
- prefix source with proj_name
"""
if mount_dict["type"]=="volume" and not mount_dict.get("source"):
mount_dict["source"] = "_".join([
srv_name, cnt_name,
hashlib.md5(mount_dict["target"].encode("utf-8")).hexdigest(),
])
if mount_dict["type"]=="volume":
source = mount_dict.get("source")
# keep old source
mount_dict["_source"] = source
if not source:
# missing source
mount_dict["source"] = "_".join([
proj_name, srv_name,
hashlib.md5(mount_dict["target"].encode("utf-8")).hexdigest(),
])
else:
# prefix with proj_name
mount_dict["source"] = proj_name+"_"+source
return mount_dict
# docker and docker-compose support subset of bash variable substitution
@ -362,7 +377,7 @@ def mount_desc_to_args(compose, mount_desc, srv_name, cnt_name):
proj_name = compose.project_name
shared_vols = compose.shared_vols
if is_str(mount_desc): mount_desc=parse_short_mount(mount_desc, basedir)
mount_desc = mount_dict_vol_to_bind(compose, fix_mount_dict(mount_desc, srv_name, cnt_name))
mount_desc = mount_dict_vol_to_bind(compose, fix_mount_dict(mount_desc, proj_name, srv_name))
mount_type = mount_desc.get("type")
source = mount_desc.get("source")
target = mount_desc["target"]