BryanDavis has uploaded a new change for review. (
https://gerrit.wikimedia.org/r/354839 )
Change subject: tools: have maintain-kubeusers chown $HOME/.kube
......................................................................
tools: have maintain-kubeusers chown $HOME/.kube
Chown the $HOME/.kube directory to the tool account. Also protect the
generate credentials with chattr.
Bug: T165875
Change-Id: I37bc5517ab4bd8b646e0c63d9140c1cc2633e9ea
---
M modules/toollabs/files/maintain-kubeusers
1 file changed, 3 insertions(+), 1 deletion(-)
git pull ssh://gerrit.wikimedia.org:29418/operations/puppet
refs/changes/39/354839/1
diff --git a/modules/toollabs/files/maintain-kubeusers
b/modules/toollabs/files/maintain-kubeusers
index a880237..c3d0203 100755
--- a/modules/toollabs/files/maintain-kubeusers
+++ b/modules/toollabs/files/maintain-kubeusers
@@ -254,14 +254,16 @@
dirpath = os.path.join('/data', 'project', user.name, '.kube')
path = os.path.join(dirpath, 'config')
# exist_ok=True is fine here, and not a security issue (Famous last
words?).
- # We also keep it owned by root, which is fine.
os.makedirs(dirpath, mode=0o775, exist_ok=True)
+ os.fchown(f, int(user.id), int(user.id))
f = os.open(path, os.O_CREAT | os.O_WRONLY | os.O_NOFOLLOW)
try:
os.write(f, json.dumps(config, indent=4,
sort_keys=True).encode('utf-8'))
# uid == gid
os.fchown(f, int(user.id), int(user.id))
os.fchmod(f, 0o400)
+ # Prevent removal or modification of the credentials file by users
+ subprocess.check_output(['/usr/bin/chattr', '+i', file_path])
logging.info('Write config in %s', path)
except:
logging.exception()
--
To view, visit https://gerrit.wikimedia.org/r/354839
To unsubscribe, visit https://gerrit.wikimedia.org/r/settings
Gerrit-MessageType: newchange
Gerrit-Change-Id: I37bc5517ab4bd8b646e0c63d9140c1cc2633e9ea
Gerrit-PatchSet: 1
Gerrit-Project: operations/puppet
Gerrit-Branch: production
Gerrit-Owner: BryanDavis <bda...@wikimedia.org>
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