Update __docker type

- Update installation method, following official installation
instructions.
  - docker-engine was renamed to Docker CE around March 2017. Update
manpage to reflect that change.
  - Remove flag `--experimental` since it is no longer necessary to install a
different binary to get experimental features. Experimental features are
included in the stable binary and can be enabled by a flag or in a
config file.

cdist/conf/type/__docker/man.rst

@@ -3,12 +3,12 @@ cdist-type__docker(7)
 
 NAME
 ----
-cdist-type__docker - install docker-engine
+cdist-type__docker - install Docker CE
 
 
 DESCRIPTION
 -----------
-Installs latest docker-engine package from dockerproject.org.
+Installs latest Docker Community Edition package.
 
 
 REQUIRED PARAMETERS
@@ -18,16 +18,13 @@ None.
 
 OPTIONAL PARAMETERS
 -------------------
-None.
+state
+   'present' or 'absent', defaults to 'present'
 
 
 BOOLEAN PARAMETERS
 ------------------
-experimental
-   Install the experimental docker-engine package instead of the latest stable release.
-
-state
-   'present' or 'absent', defaults to 'present'
+None.
 
 
 EXAMPLES
@@ -38,9 +35,6 @@ EXAMPLES
     # Install docker
     __docker
 
-    # Install experimental
-    __docker --experimental
-
     # Remove docker
     __docker --state absent
 

cdist/conf/type/__docker/manifest

@@ -24,57 +24,37 @@ state=$(cat "$__object/parameter/state")
 
 case "$os" in
     centos)
-        component="main"
-        if [ -f "$__object/parameter/experimental" ]; then
-          component="experimental"
-        fi
-        __yum_repo docker \
-          --name 'Docker Repository' \
-          --baseurl "https://yum.dockerproject.org/repo/$component/centos/\$releasever/" \
+        if (source "$__global/explorer/os_release" && [ "${VERSION_ID}" = "7" ]); then
+          __yum_repo docker-ce-stable \
+            --name 'Docker CE Stable' \
+            --baseurl "https://download.docker.com/linux/centos/7/\$basearch/stable" \
             --enabled \
             --gpgcheck 1 \
-          --gpgkey 'https://yum.dockerproject.org/gpg' \
+            --gpgkey 'https://download.docker.com/linux/centos/gpg' \
             --state ${state}
-        require="__yum_repo/docker" __package docker-engine --state ${state}
-    ;;
-    ubuntu)
-        component="main"
-      if [ -f "$__object/parameter/experimental" ]; then
-         component="experimental"
+          require="__yum_repo/docker-ce-stable" __package docker-ce --state ${state}
+        else
+          echo "CentOS version 7 is required!" >&2
+          exit 1
         fi
-      __package apparmor --state ${state}
-      __package ca-certificates --state ${state}
-      __package apt-transport-https --state ${state}
-      __apt_key docker --keyid 58118E89F3A912897C070ADBF76221572C52609D --state ${state}
+    ;;
+    ubuntu|debian)
+      if [ "${state}" = "present" ]; then
+        __package apt-transport-https
+        __package ca-certificates
+        __package gnupg2
+      fi
+      __apt_key_uri docker --name "Docker Release (CE deb) <docker@docker.com>" \
+        --uri "https://download.docker.com/linux/${os}/gpg" --state ${state}
       export CDIST_ORDER_DEPENDENCY=on
       __apt_source docker \
-         --uri https://apt.dockerproject.org/repo \
-         --distribution "ubuntu-$(cat "$__global/explorer/lsb_codename")" \
+         --uri "https://download.docker.com/linux/${os}" \
+         --distribution "$(cat "$__global/explorer/lsb_codename")" \
          --state ${state} \
-         --component "$component"
-      __package docker-engine --state ${state}
+         --component "stable"
+      __package docker-ce --state ${state}
       unset CDIST_ORDER_DEPENDENCY
    ;;
-   debian)
-       component="main"
-      if [ -f "$__object/parameter/experimental" ]; then
-         component="experimental"
-      fi
-
-      __package apt-transport-https --state ${state}
-      __package ca-certificates --state ${state}
-      __package gnupg2 --state ${state}
-      __apt_key docker --keyid 58118E89F3A912897C070ADBF76221572C52609D --state ${state}
-      export CDIST_ORDER_DEPENDENCY=on
-      __apt_source docker \
-          --uri https://apt.dockerproject.org/repo \
-          --distribution "debian-$(cat "$__global/explorer/lsb_codename")" \
-          --state ${state} \
-          --component "$component"
-      __package docker-engine --state ${state}
-      unset CDIST_ORDER_DEPENDENCY
-
-   ;;
    *)
       echo "Your operating system ($os) is currently not supported by this type (${__type##*/})." >&2
       echo "Please contribute an implementation for it if you can." >&2

cdist/conf/type/__docker/parameter/boolean

@@ -1 +0,0 @@
-experimental