From d2dd104043f263beea372ced48b394374e0a8ab7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Andr=C3=A9?= <m.andre@redhat.com>
Date: Mon, 7 May 2018 15:55:59 +0200
Subject: [PATCH] Create symlinks for failed builds logs

This allows to know which image failed to build without having to parse
the huge job-output.txt file.

This commit creates a convenient 000_FAILED_image_name.log symlink to
the relevant log files when kolla is configured to output to a log
directory. This creates symlinks only for the parent image with error,
i.e. it skips images that failed to build because of parent error.

Change-Id: I05954e2335dc3fac469276809c91f9c87e3ecab2
(cherry picked from commit 58742c212e0bdc5092ba6cc0da2fc8c5589bb172)
---
 kolla/image/build.py     | 4 ++++
 tests/playbooks/post.yml | 6 ++++++
 2 files changed, 10 insertions(+)

diff --git a/kolla/image/build.py b/kolla/image/build.py
index 7fd6fd714e..ec8a3cd393 100755
--- a/kolla/image/build.py
+++ b/kolla/image/build.py
@@ -800,6 +800,10 @@ class KollaWorker(object):
                     'name': name,
                     'status': status,
                 })
+                if self.conf.logs_dir and status == STATUS_ERROR:
+                    os.symlink("%s.log" % name,
+                               os.path.join(self.conf.logs_dir,
+                                            "000_FAILED_%s.log" % name))
 
         if self.image_statuses_unmatched:
             LOG.debug("=====================================")
diff --git a/tests/playbooks/post.yml b/tests/playbooks/post.yml
index 345ccab041..864b6e87f4 100644
--- a/tests/playbooks/post.yml
+++ b/tests/playbooks/post.yml
@@ -62,6 +62,12 @@
               sudo mv $f ${f/.log/.txt}
           done
 
+          # Update symlinks to new file names
+          for f in $(find logs -name "*FAILED*"); do
+              sudo mv ${f} ${f}.gz
+              sudo ln -sf ${f#*/000_FAILED_}.gz ${f}.gz
+          done
+
           # append .txt to all kolla config file
           find logs/kolla_configs -type f -exec mv '{}' '{}'.txt \;