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Merge pull request #16114 from jlowdermilk/blocking-flock

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Remove nonblocking on flock, update comment.
This commit is contained in:
Saad Ali 2015-10-22 16:49:53 -07:00
commit c1b478177a
1 changed files with 20 additions and 14 deletions
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34
hack/jenkins/e2e.sh
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@ -1121,27 +1121,33 @@ if [[ "${E2E_UP,,}" == "true" || "${JENKINS_FORCE_GET_TARS:-}" =~ ^[yY]$ ]]; the
(
# ----------- WARNING! DO NOT TOUCH THIS CODE -----------
#
# The purpose of this code is to ensure that only one job attempts to
# update gcloud. To do this, we call call `sudo flock` and fail
# silently if the lock can't be acquired, as that means another job is
# currently updating the components.
#
# We do NOT want to run gcloud components update under sudo, as that causes
# the gcloud files to get chown'd by root, which makes them undeletable in
# the case where we are installing gcloud under the workspace (e.g. for gke-ci
# and friends). If we can't cleanup old workspaces, jenkins runs out of disk
# and many devs get angry.
# The purpose of this block is to ensure that only one job attempts to
# update gcloud at a time.
#
# PLEASE DO NOT TOUCH THIS CODE unless you are certain you understand
# implications. Please cc jlowdermilk@ or brendandburns@ on changes.
# If jenkins was recently restarted and jobs are failing with
#
# flock: 9: Permission denied
#
# ssh into the jenkins master and run
# $ `sudo chown jenkins:jenkins /var/run/lock/gcloud-components.lock`
# $ sudo chown jenkins:jenkins /var/run/lock/gcloud-components.lock
#
# AGAIN: DO NOT TOUCH THIS CODE unless you are certain you understand
# implications and have approval from jlowdermilk@ or brendandburns@
flock -x -n 9
# Note, flock -n would prevent parallel runs from having to wait
# here, but because we've set -o errexit, the err gets caught
# despite running in a subshell. If a run has to wait, the subsequent
# component update commands will be no-op, so no added delay.
flock -x -w 60 9
# We do NOT want to run gcloud components update under sudo, as that causes
# the gcloud files to get chown'd by root, which makes them undeletable in
# the case where we are installing gcloud under the workspace (e.g. for gke-ci
# and friends). If we can't cleanup old workspaces, jenkins runs out of disk.
#
# If the update commands are failing with permission denied, ssh into
# the jenkins master and run
#
# $ sudo chown -R jenkins:jenkins /usr/local/share/google/google-cloud-sdk
gcloud components update -q || true
gcloud components update alpha -q || true
gcloud components update beta -q || true