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Merge branch 'master' of https://github.com/docker/docker.github.io

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John Mulhausen 2016-11-28 15:00:23 -08:00
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31
engine/tutorials/dockerimages.md
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@ -559,10 +559,39 @@ Delete the `training/sinatra` image as you don't need it anymore.
> **Note:** To remove an image from the host, please make sure
> that there are no containers actively based on it.
## Check size of images and containers
An image is
[stored in layers](../userguide/storagedriver/imagesandcontainers.md),
shared with other images on the host, so the real disk usage depends on
how much layer overlap is happening between images on a host.
A container runs on
[a writable layer](../userguide/storagedriver/imagesandcontainers.md#/container-and-layers)
on top of a readonly rootfs.
Use `docker history` to see the size of image layers on your host:
$ docker history centos:centos7
IMAGE CREATED CREATED BY SIZE
970633036444 6 weeks ago /bin/sh -c #(nop) CMD ["/bin/bash"] 0 B
<missing> 6 weeks ago /bin/sh -c #(nop) LABEL name=CentOS Base Imag 0 B
<missing> 6 weeks ago /bin/sh -c #(nop) ADD file:44ef4e10b27d8c464a 196.7 MB
<missing> 10 weeks ago /bin/sh -c #(nop) MAINTAINER https://github.c 0 B
Check the size of containers with `docker ps -s`:
$ docker ps -s
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES SIZE
cb7827c19ef7 docker-docs:is-11160-explain-image-container-size-prediction "hugo server --port=8" About a minute ago Up About a minute 0.0.0.0:8000->8000/tcp evil_hodgkin 0 B (virtual 949.2 MB)
# Next steps
Until now you've seen how to build individual applications inside Docker
containers. Now learn how to build whole application stacks with Docker
by networking together multiple Docker containers.
Go to [Network containers](networkingcontainers.md).
Go to [Network containers](networkingcontainers.md).

4
swarm/install-manual.md
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@ -174,9 +174,9 @@ host as one of the Swarm managers.
2. From the output, copy the `eth0` IP address from `inet addr`.
3. Paste the launch command into the command line:
3. To set up a discovery backend, use the following command, replacing `<consul0_ip>` with the IP address from the previous command:
$ docker run -d -p 8500:8500 --name=consul progrium/consul -server -bootstrap
$ docker run -d -p 8500:8500 --name=consul progrium/consul -server -bootstrap -advertise=<consul0_ip>
4. Enter `docker ps`.