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man: get rid of shell script example in systemd-socket-proxyd man page

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Lennart Poettering 2013-11-27 21:14:08 +01:00
parent 07504d6b15
commit 34c7dc47d3
2 changed files with 40 additions and 54 deletions
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2
TODO
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@ -107,8 +107,6 @@ Features:
* socket-proxyd:
- Support multiple inherited sockets mapped to different remote hosts
- Use a nonblocking alternative to getaddrinfo
- Until we can start daemons directly, find a less ugly, less racy alternative than shell scripts for the second man page example.
- Support starting daemons directly without requiring a shell script; update man pages
* "systemctl cat" or "systemctl view" command or or so, that cats the backing unit file of a service, plus its drop-ins and shows them in a pager

92
man/systemd-socket-proxyd.xml
View File

@ -108,11 +108,11 @@
<refsect1>
<title>Examples</title>
<refsect2>
<title>Direct-Use Example</title>
<title>Simple Example</title>
<para>Use two services with a dependency
and no namespace isolation.</para>
<example label="proxy socket unit">
<title>/etc/systemd/system/proxy-to-nginx.socket</title>
<example>
<title>proxy-to-nginx.socket</title>
<programlisting>
<![CDATA[[Socket]
ListenStream=80
@ -121,21 +121,21 @@ ListenStream=80
WantedBy=sockets.target]]>
</programlisting>
</example>
<example label="proxy service unit">
<title>/etc/systemd/system/proxy-to-nginx.service</title>
<example>
<title>proxy-to-nginx.service</title>
<programlisting>
<![CDATA[[Unit]
After=nginx.service
Requires=nginx.service
After=nginx.service
[Service]
ExecStart=/usr/bin/systemd-socket-proxyd /tmp/nginx.sock
PrivateTmp=true
PrivateNetwork=true]]>
ExecStart=/usr/lib/systemd/systemd-socket-proxyd /tmp/nginx.sock
PrivateTmp=yes
PrivateNetwork=yes]]>
</programlisting>
</example>
<example label="nginx configuration">
<title>/etc/nginx/nginx.conf</title>
<example>
<title>nginx.conf</title>
<programlisting>
<![CDATA[[...]
server {
@ -143,7 +143,8 @@ server {
[...]]]>
</programlisting>
</example>
<example label="commands">
<example>
<title>Enabling the proxy</title>
<programlisting>
<![CDATA[# systemctl enable proxy-to-nginx.socket
# systemctl start proxy-to-nginx.socket
@ -152,17 +153,16 @@ $ curl http://localhost:80/]]>
</example>
</refsect2>
<refsect2>
<title>Indirect-Use Example</title>
<para>Use a shell script to isolate the
service and proxy into the same namespace.
This is particularly useful for running
TCP-only daemons without the daemon
affecting ports on regular
interfaces.</para>
<example label="combined proxy and nginx socket unit">
<title>
/etc/systemd/system/proxy-with-nginx.socket</title>
<title>Namespace Example</title>
<para>Similar as above, but runs the socket
proxy and the main service in the same private
namespace, assuming that
<filename>nginx.service</filename> has
<varname>PrivateTmp=</varname> and
<varname>PrivateNetwork=</varname> set,
too.</para>
<example>
<title>proxy-to-nginx.socket</title>
<programlisting>
<![CDATA[[Socket]
ListenStream=80
@ -171,37 +171,22 @@ ListenStream=80
WantedBy=sockets.target]]>
</programlisting>
</example>
<example label="combined proxy and nginx service unit">
<title>
/etc/systemd/system/proxy-with-nginx.service</title>
<example>
<title>proxy-to-nginx.service</title>
<programlisting>
<![CDATA[[Unit]
After=remote-fs.target nss-lookup.target
Requires=nginx.service
After=nginx.service
JoinsNamespaceOf=nginx.service
[Service]
ExecStartPre=/usr/sbin/nginx -t
ExecStart=/usr/bin/socket-proxyd-nginx.sh
PrivateTmp=true
PrivateNetwork=true]]>
ExecStart=/usr/lib/systemd/systemd-socket-proxyd 127.0.0.1:8080
PrivateTmp=yes
PrivateNetwork=yes]]>
</programlisting>
</example>
<example label="shell script">
<title>
/usr/bin/socket-proxyd-nginx.sh</title>
<programlisting>
<![CDATA[#!/bin/sh
/usr/sbin/nginx
while [ ! -f /tmp/nginx.pid ]
do
/usr/bin/inotifywait /tmp/nginx.pid
done
exec /usr/bin/systemd-socket-proxyd localhost 8080]]>
</programlisting>
</example>
<example label="nginx configuration">
<title>
/etc/nginx/nginx.conf</title>
<example>
<title>nginx.conf</title>
<programlisting>
<![CDATA[[...]
server {
@ -210,10 +195,11 @@ server {
[...]]]>
</programlisting>
</example>
<example label="commands">
<example>
<title>Enabling the proxy</title>
<programlisting>
<![CDATA[# systemctl enable proxy-with-nginx.socket
# systemctl start proxy-with-nginx.socket
<![CDATA[# systemctl enable proxy-to-nginx.socket
# systemctl start proxy-to-nginx.socket
$ curl http://localhost:80/]]>
</programlisting>
</example>
@ -226,7 +212,9 @@ $ curl http://localhost:80/]]>
<citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>socat</refentrytitle><manvolnum>1</manvolnum></citerefentry>
<citerefentry><refentrytitle>socat</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>nginx</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>curl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>