CI: Use tmpfs option to Docker instead of mount.

Some tests require Asterisk to execute scripts which
are stored in /tmp. When mount is used for tmpfs there
is no ability to allow scripts to be executed from
that location.

This change switches to using tmpfs which can be told
to allow executables to be run from /tmp.

Change-Id: I0e598ca2b76af1f7f2d29f0da7b1731a214a291a

tests/CI/gates.jenkinsfile

@@ -139,7 +139,7 @@ pipeline {
 					def randomImage = env.DOCKER_REGISTRY + "/" + ri
 					/* FYI... Jenkins takes care of mouting the workspace for the container */
 					def dockerOptions = "--privileged --ulimit core=0 --ulimit nofile=10240 " +
-						" --mount type=tmpfs,tmpfs-size=1g,dst=/tmp -v /srv/jenkins:/srv/jenkins:rw -v /srv/cache:/srv/cache:rw " +
+						" --tmpfs /tmp:exec,size=1G -v /srv/jenkins:/srv/jenkins:rw -v /srv/cache:/srv/cache:rw " +
 						" --entrypoint=''"
 					def bt = env.BUILD_TAG.replaceAll(/[^a-zA-Z0-9_.-]/, '-')
 					def outputdir = "tests/CI/output/Testsuite"

tests/CI/periodics-daily.jenkinsfile

@@ -50,7 +50,7 @@ pipeline {
 					def ri = images[(int)r]
 					def randomImage = env.DOCKER_REGISTRY + "/" + ri
 					def dockerOptions = "--privileged --ulimit core=0 --ulimit nofile=10240 " +
-						" --mount type=tmpfs,tmpfs-size=1g,dst=/tmp -v /srv/jenkins:/srv/jenkins:rw -v /srv/cache:/srv/cache:rw " +
+						" --tmpfs /tmp:exec,size=1G -v /srv/jenkins:/srv/jenkins:rw -v /srv/cache:/srv/cache:rw " +
 						" --entrypoint=''"
 					def bt = env.BUILD_TAG.replaceAll(/[^a-zA-Z0-9_.-]/, '-')
 					def outputdir = "tests/CI/output/Testsuite"

tests/CI/ref_debug.jenkinsfile

@@ -50,7 +50,7 @@ pipeline {
 					def ri = images[(int)r]
 					def randomImage = env.DOCKER_REGISTRY + "/" + ri
 					def dockerOptions = "--privileged --ulimit core=0 --ulimit nofile=10240 " +
-						" --mount type=tmpfs,tmpfs-size=1g,dst=/tmp -v /srv/jenkins:/srv/jenkins:rw -v /srv/cache:/srv/cache:rw " +
+						" --tmpfs /tmp:exec,size=1G -v /srv/jenkins:/srv/jenkins:rw -v /srv/cache:/srv/cache:rw " +
 						" --entrypoint=''"
 					def bt = env.BUILD_TAG.replaceAll(/[^a-zA-Z0-9_.-]/, '-')
 					def outputdir = "tests/CI/output/Testsuite"

tests/CI/unittests.jenkinsfile

@@ -141,7 +141,7 @@ pipeline {
 					def randomImage = env.DOCKER_REGISTRY + "/" + ri;
 					def bt = env.BUILD_TAG.replaceAll(/[^a-zA-Z0-9_.-]/, '-')
 					def dockerOptions = "--privileged --ulimit core=0 --ulimit nofile=10240 " +
-						" --mount type=tmpfs,tmpfs-size=1g,dst=/tmp -v /srv/jenkins:/srv/jenkins:rw -v /srv/cache:/srv/cache:rw " +
+						" --tmpfs /tmp:exec,size=1G -v /srv/jenkins:/srv/jenkins:rw -v /srv/cache:/srv/cache:rw " +
 						" --entrypoint='' --name ${bt}-build"
 					def outputdir = "tests/CI/output/UnitTests"