ci: clamp dind MTU (runner provides DNS)

6b45c7c6f6bf5f1a842165aa4d55ff01f406979b

permissionBRICK <christoph.ambrosch@live.at>

Parents: aa7fb58b09113aabbcb68c044eb270d608e84ef5
1 files changed, +3 -1Ignore whitespace
.gitlab-ci.yml+3 -1
@@ -7,7 +7,9 @@ build-image:
7 services:7 services:
8 - name: docker:dind8 - name: docker:dind
9 alias: docker9 alias: docker
10 command: ["sh", "-c", "DOCKER_TLS_CERTDIR='' exec dockerd-entrypoint.sh"]10 # DNS comes from the runner's GITGUD_RUNNER_JOB_DNS; --mtu clamps the
11 # inner bridge (double NAT breaks PMTUD -> zero-byte download stalls).
12 command: ["sh", "-c", "DOCKER_TLS_CERTDIR='' exec dockerd-entrypoint.sh --mtu=1400"]
11 variables:13 variables:
12 DOCKER_HOST: tcp://docker:237514 DOCKER_HOST: tcp://docker:2375
13 script:15 script: