Image layer comparison

Doc/Sdi/docker.xml

@@ -29,58 +29,80 @@
   <figure xml:id="sdiDocker_figPullImage">
     <title>Pull image using <xref linkend="glo_CLI"/></title>
 
-    <screen>&gt; <emphasis role="bold">docker pull nextcloud</emphasis> <co
-        linkends="sdiDocker_figPullImage-1"
-        xml:id="sdiDocker_figPullImage-1-co"/>
-Using default tag: latest <co linkends="sdiDocker_figPullImage-2"
-        xml:id="sdiDocker_figPullImage-2-co"/>
-latest: Pulling from library/nextcloud
-3d77ce4481b1: Pull complete <co linkends="sdiDocker_figPullImage-3"
-        xml:id="sdiDocker_figPullImage-3-co"/>
-32bfdb6043a8: Pull complete 
-...
-87fdfc7d0f94: Pull complete 
-Digest: sha256:c693921...973df035 <co linkends="sdiDocker_figPullImage-4"
-        xml:id="sdiDocker_figPullImage-4-co"/>
-Status: Downloaded newer image for nextcloud:latest</screen>
+    <screen>&gt; docker pull alpine
+Using default tag: latest
+latest: Pulling from library/alpine
+<emphasis role="red">ff3a5c916c92</emphasis>: Pull complete 
+Digest: sha256:7df6db5aa61ae9480f52f0b3a06a140ab98d427f86d8d5de0bedab9b8df6b1c0
+Status: Downloaded newer image for alpine:latest</screen>
+  </figure>
+
+  <figure xml:id="sdiDocker_figPullNextcloudImage">
+    <title>Pull <productname>Nextcloud</productname> image</title>
+
+    <screen>&gt; docker <emphasis role="bold">pull wonderfall/nextcloud</emphasis> <co
+        linkends="sdiDocker_figPullNextcloudImage-1"
+        xml:id="sdiDocker_figPullNextcloudImage-1-co"/>
+Using default tag: latest <co linkends="sdiDocker_figPullNextcloudImage-2"
+        xml:id="sdiDocker_figPullNextcloudImage-2-co"/>
+latest: Pulling from wonderfall/nextcloud
+<emphasis role="red">ff3a5c916c92</emphasis>: Already exists <co
+        linkends="sdiDocker_figPullNextcloudImage-3"
+        xml:id="sdiDocker_figPullNextcloudImage-3-co"/>
+a542d4c3cffb: Pull complete <co linkends="sdiDocker_figPullNextcloudImage-4"
+        xml:id="sdiDocker_figPullNextcloudImage-4-co"/>
+83001cc0bea0: Pull complete 
+41a33c66b2c1: Pull complete 
+a70bf67726f3: Pull complete 
+fea90b3d29ac: Pull complete 
+Digest: sha256:472c5c7...2ca20cca45 <co
+        linkends="sdiDocker_figPullNextcloudImage-5"
+        xml:id="sdiDocker_figPullNextcloudImage-5-co"/>
+Status: Downloaded newer image for wonderfall/nextcloud:latest</screen>
   </figure>
 
   <calloutlist>
-    <callout arearefs="sdiDocker_figPullImage-1-co"
-             xml:id="sdiDocker_figPullImage-1">
+    <callout arearefs="sdiDocker_figPullNextcloudImage-1-co"
+             xml:id="sdiDocker_figPullNextcloudImage-1">
       <para>Get docker image from remote server.</para>
     </callout>
 
-    <callout arearefs="sdiDocker_figPullImage-2-co"
-             xml:id="sdiDocker_figPullImage-2">
-      <para>Version defaults to »latest« subject to be overridden.</para>
+    <callout arearefs="sdiDocker_figPullNextcloudImage-2-co"
+             xml:id="sdiDocker_figPullNextcloudImage-2">
+      <para>Version defaults to »latest«: Subject to be overridden.</para>
+    </callout>
+
+    <callout arearefs="sdiDocker_figPullNextcloudImage-3-co"
+             xml:id="sdiDocker_figPullNextcloudImage-3">
+      <para>Reference to existing <link
+      linkend="sdiDocker_figPullImage">»alpine« layer</link>.</para>
     </callout>
 
-    <callout arearefs="sdiDocker_figPullImage-3-co"
-             xml:id="sdiDocker_figPullImage-3">
+    <callout arearefs="sdiDocker_figPullNextcloudImage-4-co"
+             xml:id="sdiDocker_figPullNextcloudImage-4">
       <para>Layer downloads.</para>
     </callout>
 
-    <callout arearefs="sdiDocker_figPullImage-4-co"
-             xml:id="sdiDocker_figPullImage-4">
+    <callout arearefs="sdiDocker_figPullNextcloudImage-5-co"
+             xml:id="sdiDocker_figPullNextcloudImage-5">
       <para>Hash value allowing for image verification.</para>
     </callout>
   </calloutlist>
 
-  <figure xml:id="sdiDocker_figPullImageVariant">
-    <title>Pull image variant</title>
+  <figure xml:id="sdiDocker_figNextcloudImageVariant">
+    <title><productname>Nextcloud</productname> image variant</title>
 
-    <screen>goik@mi-940X3G-930X3G:~$ docker pull wonderfall/nextcloud
+    <screen>&gt; docker pull nextcloud
 Using default tag: latest
-latest: Pulling from wonderfall/nextcloud
-ff3a5c916c92: Already exists 
-a542d4c3cffb: Pull complete 
-83001cc0bea0: Pull complete 
-41a33c66b2c1: Pull complete 
-a70bf67726f3: Pull complete 
-fea90b3d29ac: Pull complete 
-Digest: sha256:472c5c7620513608cbc84f2c49bbbf2402be94405456e5cd09418b2ca20cca45
-Status: Downloaded newer image for wonderfall/nextcloud:latest</screen>
+latest: Pulling from library/nextcloud
+3d77ce4481b1: Pull complete 
+32bfdb6043a8: Pull complete 
+028453741593: Pull complete 
+f93d7bd342a3: Pull complete 
+4a2fac611953: Pull complete 
+87fdfc7d0f94: Pull complete 
+Digest: sha256:c693921e69cb8...50156d973df035
+Status: Downloaded newer image for nextcloud:latest</screen>
   </figure>
 
   <figure xml:id="sdiDocker_figListImages">
@@ -88,8 +110,9 @@ Status: Downloaded newer image for wonderfall/nextcloud:latest</screen>
 
     <screen>&gt; <link
         xlink:href="https://docs.docker.com/engine/reference/commandline/images">docker images</link>
-REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
-nextcloud           latest              10ae267ddcf2        2 weeks ago         588MB
-nginx               latest              b175e7467d66        6 weeks ago         109MB</screen>
+REPOSITORY            TAG      IMAGE ID       CREATED        SIZE
+nextcloud             latest   10ae267ddcf2   2 weeks ago    588MB
+wonderfall/nextcloud  latest   57e1fb51b334   2 months ago   328MB
+alpine                latest   3fd9065eaf02   4 months ago   4.15MB</screen>
   </figure>
 </chapter>