pespin has uploaded this change for review. (
https://gerrit.osmocom.org/c/docker-playground/+/36836?usp=email )
Change subject: ttcn3-docker-run.sh: Fix dumpcap failing to access /data inside
docker
......................................................................
ttcn3-docker-run.sh: Fix dumpcap failing to access /data inside docker
In docker, the /data dir is mapped to $VOL_BASE_DIR, which is created by
docker-playground.git jenkins-common.sh, hence as the user running
jenkins.sh in the host system.
As a result, when the dir is mapped to /data, inside the container it
will have the UID:GID of the outter user, not the one inside docker.
Before this patch, if a ttcn3 container was started in jenkins.sh with
--cap-add=NET_ADMIN, then osmo-ttcn3-hacks.git/ttcn3-tcpdump-start.sh
would select dumpcap instead of tcpdump, to attempt to record a pcap
file to /data/$testcase.pcap.
Due to some unknown way of dropping privileges done by dumpcap though,
it was unable to open the /data/$testcase.pcap due to /data being owned
to another user (tcpdump doesn't have this problem).
This patch fixes the above scenario by making dure /data is chowned to
the user running stuff inside docker. This is already kinda expected
since there's a fix_perms() script in jenkins-common.sh reverting files
created during the test so that they can be accessible by outter user
once everything is finished.
Change-Id: I1229a91cdbb1aa73fd94f1bf7e26f34086f06b25
---
M common/ttcn3-docker-run.sh
1 file changed, 32 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/docker-playground
refs/changes/36/36836/1
diff --git a/common/ttcn3-docker-run.sh b/common/ttcn3-docker-run.sh
index c8c871e..60339c4 100755
--- a/common/ttcn3-docker-run.sh
+++ b/common/ttcn3-docker-run.sh
@@ -31,6 +31,9 @@
done
fi
+# Make sure /data is owned to the user running inside docker.
+# jenkins-commons.sh fix_perms() will fix back the permissions once done.
+chown -R "$(id -u):$(id -g)" /data
cd /data
# Use TEST_NAME to only run one test instead of all. Set it like this:
--
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Gerrit-Project: docker-playground
Gerrit-Branch: master
Gerrit-Change-Id: I1229a91cdbb1aa73fd94f1bf7e26f34086f06b25
Gerrit-Change-Number: 36836
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <pes...@sysmocom.de>
Gerrit-MessageType: newchange
