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Remove references to the docker-ut image 

Signed-off-by: Aidan Hobson Sayers <aidanhs@cantab.net>
This commit is contained in:
Aidan Hobson Sayers 2015-10-15 15:01:55 +01:00
parent f9a1c8fc64
commit ac9c0f81df
1 changed files with 15 additions and 14 deletions
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29
docs/articles/ambassador_pattern_linking.md
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@ -81,42 +81,43 @@ On the Docker host (192.168.1.52) that Redis will run on:
^D ^D
# add redis ambassador # add redis ambassador
$ docker run -t -i --link redis:redis --name redis_ambassador -p 6379:6379 busybox sh $ docker run -t -i --link redis:redis --name redis_ambassador -p 6379:6379 alpine:3.2 sh
In the `redis_ambassador` container, you can see the linked Redis In the `redis_ambassador` container, you can see the linked Redis
containers `env`: containers `env`:
$ env / # env
REDIS_PORT=tcp://172.17.0.136:6379 REDIS_PORT=tcp://172.17.0.136:6379
REDIS_PORT_6379_TCP_ADDR=172.17.0.136 REDIS_PORT_6379_TCP_ADDR=172.17.0.136
REDIS_NAME=/redis_ambassador/redis REDIS_NAME=/redis_ambassador/redis
HOSTNAME=19d7adf4705e HOSTNAME=19d7adf4705e
SHLVL=1
HOME=/root
REDIS_PORT_6379_TCP_PORT=6379 REDIS_PORT_6379_TCP_PORT=6379
HOME=/
REDIS_PORT_6379_TCP_PROTO=tcp REDIS_PORT_6379_TCP_PROTO=tcp
container=lxc
REDIS_PORT_6379_TCP=tcp://172.17.0.136:6379 REDIS_PORT_6379_TCP=tcp://172.17.0.136:6379
TERM=xterm TERM=xterm
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
PWD=/ PWD=/
/ # exit
This environment is used by the ambassador `socat` script to expose Redis This environment is used by the ambassador `socat` script to expose Redis
to the world (via the `-p 6379:6379` port mapping): to the world (via the `-p 6379:6379` port mapping):
$ docker rm redis_ambassador $ docker rm redis_ambassador
$ sudo ./contrib/mkimage-unittest.sh $ CMD="apk update && apk add socat && sh"
$ docker run -t -i --link redis:redis --name redis_ambassador -p 6379:6379 docker-ut sh $ docker run -t -i --link redis:redis --name redis_ambassador -p 6379:6379 alpine:3.2 sh -c "$CMD"
[...]
$ socat -t 100000000 TCP4-LISTEN:6379,fork,reuseaddr TCP4:172.17.0.136:6379 / # socat -t 100000000 TCP4-LISTEN:6379,fork,reuseaddr TCP4:172.17.0.136:6379
Now ping the Redis server via the ambassador: Now ping the Redis server via the ambassador:
Now go to a different server: Now go to a different server:
$ sudo ./contrib/mkimage-unittest.sh $ CMD="apk update && apk add socat && sh"
$ docker run -t -i --expose 6379 --name redis_ambassador docker-ut sh $ docker run -t -i --expose 6379 --name redis_ambassador alpine:3.2 sh -c "$CMD"
[...]
$ socat -t 100000000 TCP4-LISTEN:6379,fork,reuseaddr TCP4:192.168.1.52:6379 / # socat -t 100000000 TCP4-LISTEN:6379,fork,reuseaddr TCP4:192.168.1.52:6379
And get the `redis-cli` image so we can talk over the ambassador bridge. And get the `redis-cli` image so we can talk over the ambassador bridge.
@ -127,7 +128,7 @@ And get the `redis-cli` image so we can talk over the ambassador bridge.
## The svendowideit/ambassador Dockerfile ## The svendowideit/ambassador Dockerfile
The `svendowideit/ambassador` image is based on the `alpine` image with The `svendowideit/ambassador` image is based on the `alpine:3.2` image with
`socat` installed. When you start the container, it uses a small `sed` `socat` installed. When you start the container, it uses a small `sed`
script to parse out the (possibly multiple) link environment variables script to parse out the (possibly multiple) link environment variables
to set up the port forwarding. On the remote host, you need to set the to set up the port forwarding. On the remote host, you need to set the
@ -155,5 +156,5 @@ case `192.168.1.52:6379`.
RUN apk update && \ RUN apk update && \
apk add socat && \ apk add socat && \
rm -r /var/cache/ rm -r /var/cache/
CMD env | grep _TCP= | sed 's/.*_PORT_\([0-9]*\)_TCP=tcp:\/\/\(.*\):\(.*\)/socat -t 100000000 TCP4-LISTEN:\1,fork,reuseaddr TCP4:\2:\3 \& wait/' | sh CMD env | grep _TCP= | sed 's/.*_PORT_\([0-9]*\)_TCP=tcp:\/\/\(.*\):\(.*\)/socat -t 100000000 TCP4-LISTEN:\1,fork,reuseaddr TCP4:\2:\3 \& wait/' | sh