27ef35473a
This PR fix the DockerHubPullSuite.TestPullNonExistingImage test in #19425. The majority of the execution time in this test is from multiple executions of 'docker pull', each of which takes more than one second even though it tries to pull a non-existing image. Without changing the behavior of the 'docker pull' itself, this fix tries to execute the 'docker pull' command in parallel in order to speed up the execution of the overall test. Since each 'docker pull' is independent, executions in parallel should not alter the purpose of the test. Signed-off-by: Yong Tang <yong.tang.github@outlook.com> Upstream-commit: 461976d2affe3ed4a354608d1dcb266e06f1d2b9 Component: engine