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authorJames E. Blair <jeblair@redhat.com>2020-12-11 09:15:45 -0800
committerJames E. Blair <jeblair@redhat.com>2020-12-11 09:23:46 -0800
commitf3e8c809dc8439e555ee162c411b039d85c6b5bf (patch)
tree040e623d9d6a52da73b98181e0b1ddf82f7ac175 /Dockerfile
parentc911e26fa6058df7810c1cdbe8ca4ce400dcdaae (diff)
downloadzuul-f3e8c809dc8439e555ee162c411b039d85c6b5bf.tar.gz
Enable git protocol v2 in container images
Git versions between 2.18 and 2.26 have version 2 protocol support but it's not enabled by default. Starting in 2.26, it is the default. V2 is more efficient at negotiating refs and can reduce the time spent updating a repo by 50% on large repos. This adds a setting to the container images to specify that v2 should be used. The images are currently built with git 2.20, which is in the range where this is needed. Change-Id: Ifc471c5fde49c65137bc34e49734b3ac3d33e3e1
Diffstat (limited to 'Dockerfile')
-rw-r--r--Dockerfile5
1 files changed, 5 insertions, 0 deletions
diff --git a/Dockerfile b/Dockerfile
index 670922214..f46c09c44 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -55,6 +55,11 @@ RUN /output/install-from-bindep zuul_base \
&& rm -rf /output
RUN useradd -u 10001 -m -d /var/lib/zuul -c "Zuul Daemon" zuul
+# This enables git protocol v2 which is more efficient at negotiating
+# refs. This can be removed after the images are built with git 2.26
+# where it becomes the default.
+RUN git config --system protocol.version 2
+
VOLUME /var/lib/zuul
CMD ["/usr/local/bin/zuul"]