From a7f4c8d7736f961a654f93340439da92ccb1bd7f Mon Sep 17 00:00:00 2001
From: Jonas Weber <github@jonasw.de>
Date: Thu, 13 Dec 2018 13:23:49 +0100
Subject: [PATCH] Allow installing specific Docker-CE version

---
 cdist/conf/type/__docker/man.rst                   |  5 +++++
 cdist/conf/type/__docker/manifest                  | 13 +++++++++++--
 cdist/conf/type/__docker/parameter/default/version |  1 +
 cdist/conf/type/__docker/parameter/optional        |  1 +
 4 files changed, 18 insertions(+), 2 deletions(-)
 create mode 100644 cdist/conf/type/__docker/parameter/default/version

diff --git a/cdist/conf/type/__docker/man.rst b/cdist/conf/type/__docker/man.rst
index 5cb28ee1..718543a8 100644
--- a/cdist/conf/type/__docker/man.rst
+++ b/cdist/conf/type/__docker/man.rst
@@ -20,6 +20,9 @@ OPTIONAL PARAMETERS
 -------------------
 state
    'present' or 'absent', defaults to 'present'
+version
+   The specific version to install. Defaults to the special value 'latest',
+   meaning the version the package manager will install by default.
 
 
 BOOLEAN PARAMETERS
@@ -38,6 +41,8 @@ EXAMPLES
     # Remove docker
     __docker --state absent
 
+    # Install specific version
+    __docker --state present --version 18.03.0.ce
 
 AUTHORS
 -------
diff --git a/cdist/conf/type/__docker/manifest b/cdist/conf/type/__docker/manifest
index 8f26feec..a893ea15 100755
--- a/cdist/conf/type/__docker/manifest
+++ b/cdist/conf/type/__docker/manifest
@@ -21,6 +21,7 @@
 
 os=$(cat "$__global/explorer/os")
 state=$(cat "$__object/parameter/state")
+version=$(cat "$__object/parameter/version")
 
 case "$os" in
     centos)
@@ -33,7 +34,11 @@ case "$os" in
             --gpgcheck 1 \
             --gpgkey 'https://download.docker.com/linux/centos/gpg' \
             --state "${state}"
-          require="__yum_repo/docker-ce-stable" __package docker-ce --state "${state}"
+          if [ "$version" != "latest" ]; then
+            require="__yum_repo/docker-ce-stable" __package docker-ce --version "${version}" --state "${state}"
+          else
+            require="__yum_repo/docker-ce-stable" __package docker-ce --state "${state}"
+          fi
         else
           echo "CentOS version 7 is required!" >&2
           exit 1
@@ -53,7 +58,11 @@ case "$os" in
          --distribution "$(cat "$__global/explorer/lsb_codename")" \
          --state "${state}" \
          --component "stable"
-      __package docker-ce --state "${state}"
+      if [ "$version" != "latest" ]; then
+        __package docker-ce --version "${version}" --state "${state}"
+      else
+        __package docker-ce --state "${state}"
+      fi
       unset CDIST_ORDER_DEPENDENCY
    ;;
    *)
diff --git a/cdist/conf/type/__docker/parameter/default/version b/cdist/conf/type/__docker/parameter/default/version
new file mode 100644
index 00000000..a0f9a4b4
--- /dev/null
+++ b/cdist/conf/type/__docker/parameter/default/version
@@ -0,0 +1 @@
+latest
diff --git a/cdist/conf/type/__docker/parameter/optional b/cdist/conf/type/__docker/parameter/optional
index ff72b5c7..4d595ed7 100644
--- a/cdist/conf/type/__docker/parameter/optional
+++ b/cdist/conf/type/__docker/parameter/optional
@@ -1 +1,2 @@
 state
+version