Use 3 hours timeout for gate jobs and install yum-axelget

We have much more images and need more time to build jobs.

Install yum-axelget to make download more faster.

Change-Id: I8af9aef98864214a16eb0fad2142bd1679afe94e

.zuul.yaml

@@ -84,7 +84,7 @@
 - job:
     name: kolla-base
     parent: base
-    timeout: 5400
+    timeout: 10200
     pre-run: tests/playbooks/pre.yml
     run: tests/playbooks/run.yml
     post-run: tests/playbooks/post.yml
@@ -120,7 +120,6 @@
 - job:
     name: kolla-publish-centos-source
     parent: kolla-build-centos-source
-    timeout: 10800
     post-run: tests/playbooks/publish.yml
     vars:
       publisher: true
@@ -149,7 +148,6 @@
 - job:
     name: kolla-publish-ubuntu-source
     parent: kolla-build-ubuntu-source
-    timeout: 10800
     post-run: tests/playbooks/publish.yml
     vars:
       publisher: true
@@ -178,7 +176,6 @@
 - job:
     name: kolla-publish-oraclelinux-source
     parent: kolla-build-oraclelinux-source
-    timeout: 10800
     post-run: tests/playbooks/publish.yml
     vars:
       publisher: true

docker/base/Dockerfile.j2

@@ -224,7 +224,8 @@ RUN yum -y install \
         'python',
         'scsi-target-utils',
         'sudo',
-        'which'
+        'which',
+        'yum-axelget'
 ] %}
 # Install base packages
 {{ macros.install_packages( base_centos_binary_packages | customizable("centos_binary_packages")) }}
@@ -241,7 +242,8 @@ RUN yum -y install \
     'scsi-target-utils',
     'sudo',
     'tar',
-    'which'
+    'which',
+    'yum-axelget'
 ] %}
 # Update packages
 {{ macros.install_packages( base_centos_source_packages | customizable("centos_source_packages")) }}