Update sshd example to use ubuntu 16.04

Although the example is just for illustrational
purposes, many users are now switching to
Ubuntu 16.04 as the "default" version for Ubuntu,
so updating the example for those that use
this example as a starting point.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2016-09-19 12:52:13 +02:00
parent c496b4eb1b
commit b81d12e7a1
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2 changed files with 35 additions and 34 deletions

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@ -1,14 +1,10 @@
# sshd
#
# VERSION 0.0.2
FROM ubuntu:14.04
FROM ubuntu:16.04
MAINTAINER Sven Dowideit <SvenDowideit@docker.com>
RUN apt-get update && apt-get install -y openssh-server
RUN mkdir /var/run/sshd
RUN echo 'root:screencast' | chpasswd
RUN sed -i 's/PermitRootLogin without-password/PermitRootLogin yes/' /etc/ssh/sshd_config
RUN sed -i 's/PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config
# SSH login fix. Otherwise user is kicked off after login
RUN sed 's@session\s*required\s*pam_loginuid.so@session optional pam_loginuid.so@g' -i /etc/pam.d/sshd

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@ -16,48 +16,52 @@ The following `Dockerfile` sets up an SSHd service in a container that you
can use to connect to and inspect other container's volumes, or to get
quick access to a test container.
# sshd
#
# VERSION 0.0.2
```Dockerfile
FROM ubuntu:16.04
MAINTAINER Sven Dowideit <SvenDowideit@docker.com>
FROM ubuntu:14.04
MAINTAINER Sven Dowideit <SvenDowideit@docker.com>
RUN apt-get update && apt-get install -y openssh-server
RUN mkdir /var/run/sshd
RUN echo 'root:screencast' | chpasswd
RUN sed -i 's/PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config
RUN apt-get update && apt-get install -y openssh-server
RUN mkdir /var/run/sshd
RUN echo 'root:screencast' | chpasswd
RUN sed -i 's/PermitRootLogin without-password/PermitRootLogin yes/' /etc/ssh/sshd_config
# SSH login fix. Otherwise user is kicked off after login
RUN sed 's@session\s*required\s*pam_loginuid.so@session optional pam_loginuid.so@g' -i /etc/pam.d/sshd
# SSH login fix. Otherwise user is kicked off after login
RUN sed 's@session\s*required\s*pam_loginuid.so@session optional pam_loginuid.so@g' -i /etc/pam.d/sshd
ENV NOTVISIBLE "in users profile"
RUN echo "export VISIBLE=now" >> /etc/profile
ENV NOTVISIBLE "in users profile"
RUN echo "export VISIBLE=now" >> /etc/profile
EXPOSE 22
CMD ["/usr/sbin/sshd", "-D"]
EXPOSE 22
CMD ["/usr/sbin/sshd", "-D"]
```
Build the image using:
$ docker build -t eg_sshd .
```bash
$ docker build -t eg_sshd .
```
## Run a `test_sshd` container
Then run it. You can then use `docker port` to find out what host port
the container's port 22 is mapped to:
$ docker run -d -P --name test_sshd eg_sshd
$ docker port test_sshd 22
0.0.0.0:49154
```bash
$ docker run -d -P --name test_sshd eg_sshd
$ docker port test_sshd 22
0.0.0.0:49154
```
And now you can ssh as `root` on the container's IP address (you can find it
with `docker inspect`) or on port `49154` of the Docker daemon's host IP address
(`ip address` or `ifconfig` can tell you that) or `localhost` if on the
Docker daemon host:
$ ssh root@192.168.1.2 -p 49154
# The password is ``screencast``.
root@f38c87f2a42d:/#
```bash
$ ssh root@192.168.1.2 -p 49154
# The password is ``screencast``.
root@f38c87f2a42d:/#
```
## Environment variables
@ -78,7 +82,8 @@ short script to do the same before you start `sshd -D` and then replace the
Finally, clean up after your test by stopping and removing the
container, and then removing the image.
$ docker stop test_sshd
$ docker rm test_sshd
$ docker rmi eg_sshd
```bash
$ docker stop test_sshd
$ docker rm test_sshd
$ docker rmi eg_sshd
```