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Last session 4 reorg
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Peter Schiffer committed May 31, 2016
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2 changes: 1 addition & 1 deletion css/docker-101.css
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.reveal pre code {
max-height: 500px;
max-height: 600px;
font-size: 1.2em;
line-height: 1.2em;
}
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233 changes: 114 additions & 119 deletions index.html
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Expand Up @@ -33,7 +33,6 @@
<li>
<a href="#/session-1">Introduction, history, underlying technologies</a>
<ul>
<li><a href="#/intro">Intro</a></li>
<li><a href="#/history">History</a></li>
<li><a href="#/kernel-features">Underlying Kernel features</a></li>
<li><a href="#/why-containers">Why containers</a></li>
Expand All @@ -45,7 +44,6 @@
<li>
<a href="#/session-2">Running containers, atomic, docker compose, ansible</a>
<ul>
<li><a href="#/docker-cli">Docker cli</a></li>
<li><a href="#/atomic-command">Atomic command</a></li>
<li><a href="#/cockpit">Cockpit</a></li>
<li><a href="#/docker-compose">Docker compose</a></li>
Expand All @@ -55,13 +53,22 @@
<li>
<a href="#/session-3">Docker images, layers, creating images, registry</a>
<ul>
<li><a href="#/layers">Layers</a></li>
<li><a href="#/building-images">Building images</a></li>
<li><a href="#/building-tips">Building: tips &amp; tricks</a></li>
<li><a href="#/distributing-images">Distributing images</a></li>
<li><a href="#/image-metadata">Docker image metadata</a></li>
</ul>
</li>
<li>
<a href="#/session-4">Docker for developers, packaging applications</a>
<ul>
<li><a href="#/packaging-apps">Packaging applications</a></li>
<li><a href="#/compiling-in-containers">Compiling in containers</a></li>
<li><a href="#/trying-unknown-code">Trying unknown code</a></li>
<li><a href="#/upgrading-mariadb">Upgrading MariaDB</a></li>
<li><a href="#/systemd-in-container">Systemd in a container</a></li>
</ul>
</li>
</ul>

<div class="slides">
Expand Down Expand Up @@ -1976,11 +1983,11 @@ <h2>Thank you!</h2>
<h2>Session 4</h2>
<ul>
<li><a href="#/development-with-docker">Development with Docker</a></li>
<li><a href="#/packaging-apps">Packaging applications</a></li>
<li><a href="#/compiling-in-containers">Compiling in containers</a></li>
<li><a href="#/trying-unknown-code">Trying unknown code</a></li>
<li><a href="#/upgrading-mariadb">Upgrading MariaDB</a></li>
<li><a href="#/systemd-in-container">Systemd in a container</a></li>
<li><a href="#/packaging-apps">Packaging applications</a></li>
</ul>
</section>

Expand Down Expand Up @@ -2012,7 +2019,7 @@ <h2>Let's do this without docker</h2>

<section>
<h2>Nope</h2>
<h2 class="fragment" data-fragment-index="1">Let's try with docker now</h2>
<h2 class="fragment">Let's try with docker now</h2>
</section>

<section>
Expand Down Expand Up @@ -2256,6 +2263,108 @@ <h2>Workflow</h2>
</ul>
</section>

<section id="packaging-apps">
<h2>Packaging applications into containers</h2>
<ul>
<li>Packaging a Service</li>
<li>Packaging a Terminal app</li>
<li>Packaging a GUI app</li>
</ul>
</section>

<section id="caddy">
<h2>Packaging a service</h2>
<p><strong>Simple web server that implements HTTP/2.0</strong></p>
<ul>
<li>First compile source code to a standalone static executable</li>
<li>Then create 'from scratch' image. Resulting size is 11MB
<pre><code data-trim data-noescape>
FROM scratch
COPY caddy /caddy
COPY Caddyfile /Caddyfile
COPY index.html /index.html
CMD ["/caddy"]
</code></pre></li>
<li>Caddy runs by default on port 2015</li>
</ul>
<pre><code data-trim data-noescape>
$ sudo docker run -d -p 2015:2015 --name caddy jkarasek/caddy
</code></pre>
</section>

<section id="weechat">
<h2>Packaging a Terminal app</h2>
<p><strong>The Weechat IRC client</strong></p>
<p>Create Docker image with weechat based on Fedora:</p>
<pre><code data-trim data-noescape>
FROM fedora:23
RUN dnf -y --setopt=tsflags=nodocs install weechat \
&amp;&amp; dnf -y clean all
CMD ["weechat"]
</code></pre>
<p>Establish connection:</p>
<pre><code data-trim data-noescape>
$ sudo docker run -it --name weechat jkarasek/weechat
</code></pre>
<p>You can try out these basic commands:</p>
<pre><code data-trim data-noescape>
/server add freenode chat.freenode.net
/set irc.server.freenode.nicks "my_nick"
/connect freenode
/join #rhel
</code></pre>
</section>

<section id="gui-apps-in-containers">
<h2>Running GUI apps in containers</h2>
<p>Container needs access to the X server:</p>
<pre><code data-trim>
-v /tmp/.X11-unix:/tmp/.X11-unix
-e DISPLAY=$DISPLAY
</code></pre>
<p>... also it needs to be authorized:</p>
<pre><code data-trim>
-e XAUTHORITY=/.Xauthority
-v ~/.Xauthority:/.Xauthority:ro
</code></pre>
<p>... and allowed:</p>
<pre><code data-trim>
$ xhost +
access control disabled, clients can connect from any host
</code></pre>
</section>

<section id="firefox-in-container">
<h2>Running firefox in a container</h2>
<pre><code data-trim>
FROM fedora:23
RUN dnf install -y firefox libcanberra-gtk3
CMD firefox --no-remote
</code></pre>
<pre><code data-trim>
docker run \
-v /tmp/.X11-unix:/tmp/.X11-unix \
-e DISPLAY=$DISPLAY \
-e XAUTHORITY=/.Xauthority \
-v ~/.Xauthority:/.Xauthority:ro \
firefox
</code></pre>
</section>

<section>
<h2>Debugging GUI apps in a container</h2>
<ul>
<li>Verify that you can connect to X server:
<pre><code data-trim>
$ xset -q
</code></pre>
</li>
<li>Install graphical backends (e.g. mesa)</li>
<li>Install proper graphical toolkits (gtk2, gtk3, qt...)</li>
<li>Sound or video card is not a problem!</li>
</ul>
</section>

<section id="compiling-in-containers">
<h2>Compiling in containers</h2>
</section>
Expand Down Expand Up @@ -2537,120 +2646,6 @@ <h2>Does it boot?</h2>
</code></pre>
</section>

<section id="packaging-apps">
<h2>Packaging applications into containers</h2>
<ul>
<li>Packaging a Service</li>
<li>Packaging a Terminal app</li>
<li>Packaging a GUI app</li>
</ul>
</section>

<section id="caddy">
<h2>Packaging a service</h2>
<p><strong>Simple web server that implements HTTP/2.0</strong></p>
<ul>
<li>First compile source code to a standalone static executable</li>
<li>Then create 'from scratch' image. Resulting size is 11MB
<pre><code data-trim data-noescape>
FROM scratch
COPY caddy /caddy
COPY Caddyfile /Caddyfile
COPY index.html /index.html
CMD ["/caddy"]
</code></pre></li>
<li>Caddy runs by default on port 2015</li>
</ul>
<pre><code data-trim data-noescape>
$ sudo docker run -d -p 2015:2015 --name caddy jkarasek/caddy
</code></pre>

<aside class="notes">
<ul>
<li></li>
</ul>
</aside>
</section>

<section id="weechat">
<h2>Packaging a Terminal app</h2>
<p><strong>The Weechat IRC client</strong></p>
<p>Create Docker image with weechat based on Fedora:</p>
<pre><code data-trim data-noescape>
FROM fedora:23
RUN dnf -y --setopt=tsflags=nodocs install weechat \
&amp;&amp; dnf -y clean all
CMD ["weechat"]
</code></pre>
<p>Establish connection:</p>
<pre><code data-trim data-noescape>
$ sudo docker run -it --name weechat jkarasek/weechat
</code></pre>
<p>You can try out these basic commands:</p>
<pre><code data-trim data-noescape>
/server add freenode chat.freenode.net
/set irc.server.freenode.nicks "my_nick"
/connect freenode
/join #rhel
</code></pre>

<aside class="notes">
<ul>
<li></li>
</ul>
</aside>
</section>

<section id="gui-apps-in-containers">
<h2>Running GUI apps in containers</h2>
<p>Container needs access to the X server:</p>
<pre><code data-trim>
-v /tmp/.X11-unix:/tmp/.X11-unix
-e DISPLAY=$DISPLAY
</code></pre>
<p>... also it needs to be authorized:</p>
<pre><code data-trim>
-e XAUTHORITY=/.Xauthority
-v ~/.Xauthority:/.Xauthority:ro
</code></pre>
<p>... and allowed:</p>
<pre><code data-trim>
$ xhost +
access control disabled, clients can connect from any host
</code></pre>
</section>

<section id="firefox-in-container">
<h2>Running firefox in a container</h2>
<pre><code data-trim>
FROM fedora:23
RUN dnf install -y firefox libcanberra-gtk3
CMD firefox --no-remote
</code></pre>
<pre><code data-trim>
docker run \
-v /tmp/.X11-unix:/tmp/.X11-unix \
-e DISPLAY=$DISPLAY \
-e XAUTHORITY=/.Xauthority \
-v ~/.Xauthority:/.Xauthority:ro \
firefox
</code></pre>
</section>

<section>
<h2>Debugging GUI apps in a container</h2>
<ul>
<li>Verify that you can connect to X server:
<pre><code data-trim>
$ xset -q
</code></pre>
</li>
<li>Install graphical backends (e.g. mesa)</li>
<li>Install proper graphical toolkits (gtk2, gtk3, qt...)</li>
<li>Sound or video card is not a problem!</li>
</ul>
</section>

<section>
<h2>Links</h2>
<ul>
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