Switch to 1.4.0 docker images for provisioner
diff --git a/provisioner/docker/config_centos-7.yaml b/provisioner/docker/config_centos-7.yaml
index ab0e9d8..916bf0e 100644
--- a/provisioner/docker/config_centos-7.yaml
+++ b/provisioner/docker/config_centos-7.yaml
@@ -15,7 +15,7 @@
 
 docker:
         memory_limit: "4g"
-        image: "bigtop/puppet:trunk-centos-7"
+        image: "bigtop/puppet:1.4.0-centos-7"
 
 repo: "http://repos.bigtop.apache.org/releases/1.4.0/centos/7/$basearch"
 distro: centos
diff --git a/provisioner/docker/config_debian-9.yaml b/provisioner/docker/config_debian-9.yaml
index 9b07254..30bd620 100644
--- a/provisioner/docker/config_debian-9.yaml
+++ b/provisioner/docker/config_debian-9.yaml
@@ -15,7 +15,7 @@
 
 docker:
         memory_limit: "4g"
-        image: "bigtop/puppet:trunk-debian-9"
+        image: "bigtop/puppet:1.4.0-debian-9"
 
 repo: "http://repos.bigtop.apache.org/releases/1.4.0/debian/9/$(ARCH)"
 distro: debian
diff --git a/provisioner/docker/config_fedora-26.yaml b/provisioner/docker/config_fedora-26.yaml
index 7510cb1..4ec7c13 100644
--- a/provisioner/docker/config_fedora-26.yaml
+++ b/provisioner/docker/config_fedora-26.yaml
@@ -15,7 +15,7 @@
 
 docker:
         memory_limit: "4g"
-        image: "bigtop/puppet:trunk-fedora-26"
+        image: "bigtop/puppet:1.4.0-fedora-26"
 
 repo: "http://repos.bigtop.apache.org/releases/1.4.0/fedora/26/$basearch"
 distro: centos
diff --git a/provisioner/docker/config_ubuntu-16.04.yaml b/provisioner/docker/config_ubuntu-16.04.yaml
index e087a78..0f64dcc 100644
--- a/provisioner/docker/config_ubuntu-16.04.yaml
+++ b/provisioner/docker/config_ubuntu-16.04.yaml
@@ -15,7 +15,7 @@
 
 docker:
         memory_limit: "4g"
-        image:  "bigtop/puppet:trunk-ubuntu-16.04"
+        image:  "bigtop/puppet:1.4.0-ubuntu-16.04"
 
 repo: "http://repos.bigtop.apache.org/releases/1.4.0/ubuntu/16.04/$(ARCH)"
 distro: debian