Parametrize git repo and slides URLs

We have two extra variables in the slides:
@@GITREPO@@ (current value: github.com/jpetazzo/container.training)
@@SLIDES@@ (current value: http://container.training/)

These variables are set with gitrepo and slides in the YAML files.
(Just like the chat variable.)

Supercedes #256

slides/common/about-slides.md

@@ -2,7 +2,7 @@
 
 - All the content is available in a public GitHub repository:
 
-  https://github.com/jpetazzo/container.training
+  https://@@GITREPO@@
 
 - You can get updated "builds" of the slides there:
 
@@ -10,7 +10,7 @@
 
 <!--
 .exercise[
-```open https://github.com/jpetazzo/container.training```
+```open https://@@GITREPO@@```
 ```open http://container.training/```
 ]
 -->
@@ -23,7 +23,7 @@
 
 <!--
 .exercise[
-```open https://github.com/jpetazzo/container.training/tree/master/slides/common/about-slides.md```
+```open https://@@GITREPO@@/tree/master/slides/common/about-slides.md```
 ]
 -->
 

slides/common/prereqs.md

@@ -48,11 +48,11 @@ Misattributed to Benjamin Franklin
 
 - This is the stuff you're supposed to do!
 
-- Go to [container.training](http://container.training/) to view these slides
+- Go to @@SLIDES@@ to view these slides
 
 - Join the chat room: @@CHAT@@
 
-<!-- ```open http://container.training/``` -->
+<!-- ```open @@SLIDES@@``` -->
 
 ]
 
@@ -222,7 +222,7 @@ If anything goes wrong — ask for help!
   Small setup effort; small cost; flexible environments
 
 - Create a bunch of clusters for you and your friends
-    ([instructions](https://github.com/jpetazzo/container.training/tree/master/prepare-vms))
+    ([instructions](https://@@GITREPO@@/tree/master/prepare-vms))
 
   Bigger setup effort; ideal for group training
 

slides/common/sampleapp.md

@@ -16,7 +16,7 @@ fi
 
 - Clone the repository on `node1`:
   ```bash
-  git clone git://github.com/jpetazzo/container.training
+  git clone git://@@GITREPO@@
   ```
 
 ]
@@ -56,16 +56,16 @@ and displays aggregated logs.
 ## More detail on our sample application
 
 - Visit the GitHub repository with all the materials of this workshop:
-  <br/>https://github.com/jpetazzo/container.training
+  <br/>https://@@GITREPO@@
 
 - The application is in the [dockercoins](
-  https://github.com/jpetazzo/container.training/tree/master/dockercoins)
+  https://@@GITREPO@@/tree/master/dockercoins)
   subdirectory
 
 - Let's look at the general layout of the source code:
 
   there is a Compose file [docker-compose.yml](
-  https://github.com/jpetazzo/container.training/blob/master/dockercoins/docker-compose.yml) ...
+  https://@@GITREPO@@/blob/master/dockercoins/docker-compose.yml) ...
 
   ... and 4 other services, each in its own directory:
 
@@ -124,7 +124,7 @@ def hash_bytes(data):
 ```
 
 (Full source code available [here](
-https://github.com/jpetazzo/container.training/blob/8279a3bce9398f7c1a53bdd95187c53eda4e6435/dockercoins/worker/worker.py#L17
+https://@@GITREPO@@/blob/8279a3bce9398f7c1a53bdd95187c53eda4e6435/dockercoins/worker/worker.py#L17
 ))
 
 ---

slides/common/title.md

@@ -17,5 +17,5 @@ class: title, in-person
 *Don't stream videos or download big files during the workshop.*<br/>
 *Thank you!*
 
-**Slides: http://container.training/**
-]
+**Slides: @@SLIDES@@**
+]

slides/intro-fullday.yml

@@ -6,6 +6,10 @@ title: |
 chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
 #chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
 
+gitrepo: github.com/jpetazzo/container.training
+
+slides: http://container.training/
+
 exclude:
 - self-paced
 

slides/intro-selfpaced.yml

@@ -6,6 +6,10 @@ title: |
 chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
 #chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
 
+gitrepo: github.com/jpetazzo/container.training
+
+slides: http://container.training/
+
 exclude:
 - in-person
 

slides/intro/intro.md

@@ -2,7 +2,7 @@
 
 - This was initially written to support in-person, instructor-led workshops and tutorials
 
-- These materials are maintained by [Jérôme Petazzoni](https://twitter.com/jpetazzo) and [multiple contributors](https://github.com/jpetazzo/container.training/graphs/contributors)
+- These materials are maintained by [Jérôme Petazzoni](https://twitter.com/jpetazzo) and [multiple contributors](https://@@GITREPO@@/graphs/contributors)
 
 - You can also follow along on your own, at your own pace
 

slides/kube-fullday.yml

@@ -6,6 +6,10 @@ title: |
 #chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
 chat: "In person!"
 
+gitrepo: github.com/jpetazzo/container.training
+
+slides: http://container.training/
+
 exclude:
 - self-paced
 

slides/kube-halfday.yml

@@ -5,6 +5,10 @@ title: |
 #chat: "[Gitter](https://gitter.im/jpetazzo/training-20180413-paris)"
 chat: "In person!"
 
+gitrepo: github.com/jpetazzo/container.training
+
+slides: http://container.training/
+
 exclude:
 - self-paced
 

slides/kube-selfpaced.yml

@@ -5,6 +5,10 @@ title: |
 chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
 #chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
 
+gitrepo: github.com/jpetazzo/container.training
+
+slides: http://container.training/
+
 exclude:
 - in-person
 

slides/kube/intro.md

@@ -3,7 +3,7 @@
 - This was initially written by [Jérôme Petazzoni](https://twitter.com/jpetazzo) to support in-person,
   instructor-led workshops and tutorials
   
-- Credit is also due to [multiple contributors](https://github.com/jpetazzo/container.training/graphs/contributors) — thank you!
+- Credit is also due to [multiple contributors](https://@@GITREPO@@/graphs/contributors) — thank you!
 
 - You can also follow along on your own, at your own pace
 

slides/kube/setup-k8s.md

@@ -20,7 +20,7 @@
 
     6. Copy the configuration file generated by `kubeadm init`
 
-- Check the [prepare VMs README](https://github.com/jpetazzo/container.training/blob/master/prepare-vms/README.md) for more details
+- Check the [prepare VMs README](https://@@GITREPO@@/blob/master/prepare-vms/README.md) for more details
 
 ---
 

slides/markmaker.py

@@ -114,6 +114,8 @@ def generatefromyaml(manifest, filename):
     html = html.replace("@@MARKDOWN@@", markdown)
     html = html.replace("@@EXCLUDE@@", exclude)
     html = html.replace("@@CHAT@@", manifest["chat"])
+    html = html.replace("@@GITREPO@@", manifest["gitrepo"])
+    html = html.replace("@@SLIDES@@", manifest["slides"])
     html = html.replace("@@TITLE@@", manifest["title"].replace("\n", " "))
     return html
 

slides/swarm-fullday.yml

@@ -5,6 +5,10 @@ title: |
 chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
 #chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
 
+gitrepo: github.com/jpetazzo/container.training
+
+slides: http://container.training/
+
 exclude:
 - self-paced
 - snap

slides/swarm-halfday.yml

@@ -5,6 +5,10 @@ title: |
 chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
 #chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
 
+gitrepo: github.com/jpetazzo/container.training
+
+slides: http://container.training/
+
 exclude:
 - self-paced
 - snap

slides/swarm-selfpaced.yml

@@ -4,6 +4,10 @@ title: |
 
 chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
 
+gitrepo: github.com/jpetazzo/container.training
+
+slides: http://container.training/
+
 exclude:
 - in-person
 - btp-auto

slides/swarm-video.yml

@@ -4,6 +4,10 @@ title: |
 
 chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
 
+gitrepo: github.com/jpetazzo/container.training
+
+slides: http://container.training/
+
 exclude:
 - in-person
 - btp-auto

slides/swarm/encryptionatrest.md

@@ -49,7 +49,7 @@ This will display the unlock key. Copy-paste it somewhere safe.
 ]
 
 Note: if you are doing the workshop on your own, using nodes
-that you [provisioned yourself](https://github.com/jpetazzo/container.training/tree/master/prepare-machine) or with [Play-With-Docker](http://play-with-docker.com/), you might have to use a different method to restart the Engine.
+that you [provisioned yourself](https://@@GITREPO@@/tree/master/prepare-machine) or with [Play-With-Docker](http://play-with-docker.com/), you might have to use a different method to restart the Engine.
 
 ---
 

slides/swarm/intro.md

@@ -3,7 +3,7 @@
 - This was initially written by [Jérôme Petazzoni](https://twitter.com/jpetazzo) to support in-person,
   instructor-led workshops and tutorials
   
-- Over time, [multiple contributors](https://github.com/jpetazzo/container.training/graphs/contributors) also helped to improve these materials — thank you!
+- Over time, [multiple contributors](https://@@GITREPO@@/graphs/contributors) also helped to improve these materials — thank you!
 
 - You can also follow along on your own, at your own pace
 

slides/swarm/logging.md

@@ -113,7 +113,7 @@ class: elk-manual
 
 - We could author a custom image bundling this configuration
 
-- We can also pass the [configuration](https://github.com/jpetazzo/container.training/blob/master/elk/logstash.conf) on the command line
+- We can also pass the [configuration](https://@@GITREPO@@/blob/master/elk/logstash.conf) on the command line
 
 .exercise[
 
@@ -195,7 +195,7 @@ class: elk-auto
 Note: the *build* and *push* steps are not strictly necessary, but they don't hurt!
 
 Let's have a look at the [Compose file](
-https://github.com/jpetazzo/container.training/blob/master/stacks/elk.yml).
+https://@@GITREPO@@/blob/master/stacks/elk.yml).
 
 ---
 

slides/swarm/machine.md

@@ -169,7 +169,7 @@ class: in-person
 This should tell us that we are talking to `node3`.
 
 Note: it can be useful to use a [custom shell prompt](
-https://github.com/jpetazzo/container.training/blob/master/prepare-vms/scripts/postprep.rc#L68)
+https://@@GITREPO@@/blob/master/prepare-vms/scripts/postprep.rc#L68)
 reflecting the `DOCKER_HOST` variable.
 
 ---

slides/swarm/operatingswarm.md

@@ -33,7 +33,7 @@ TOKEN=$(docker swarm join-token -q manager)
 for N in $(seq 2 5); do
   DOCKER_HOST=tcp://node$N:2375 docker swarm join --token $TOKEN node1:2377
 done
-git clone git://github.com/jpetazzo/container.training
+git clone git://@@GITREPO@@
 cd container.training/stacks
 docker stack deploy --compose-file registry.yml registry
 docker-compose -f dockercoins.yml build