As of 1.3 `docker ps` no longer shows links between containers.
This updates the documentation to reflect that change.
sudo docker docker inspect -f "{{ .HostConfig.Links }}" web
Signed-off-by: Philipp Weissensteiner <mail@philippweissensteiner.com>
| ... | ... |
@@ -151,18 +151,13 @@ earlier. The `--link` flag takes the form: |
| 151 | 151 |
Where `name` is the name of the container we're linking to and `alias` is an |
| 152 | 152 |
alias for the link name. You'll see how that alias gets used shortly. |
| 153 | 153 |
|
| 154 |
-Next, look at the names of your linked containers by filtering the full output of |
|
| 155 |
-`docker ps` to the last column (NAMES) using `docker ps --no-trunc | awk '{print $NF}'`.
|
|
| 156 |
- |
|
| 157 |
- $ sudo docker ps --no-trunc | awk '{print $NF}'
|
|
| 158 |
- NAMES |
|
| 159 |
- db, web/db |
|
| 160 |
- web |
|
| 161 |
- |
|
| 162 |
-You can see your named containers, `db` and `web`, and you can see that the `db` |
|
| 163 |
-container also shows `web/db` in the `NAMES` column. This tells you that the |
|
| 164 |
-`web` container is linked to the `db` container, which allows it to access information |
|
| 165 |
-about the `db` container. |
|
| 154 |
+Next, inspect your linked containers with `docker inspect`: |
|
| 155 |
+ |
|
| 156 |
+ $ sudo docker inspect -f "{{ .HostConfig.Links }}" web
|
|
| 157 |
+ [/db:/web/db] |
|
| 158 |
+ |
|
| 159 |
+You can see that the `web` container is now linked to the `db` container |
|
| 160 |
+`web/db`. Which allows it to access information about the `db` container. |
|
| 166 | 161 |
|
| 167 | 162 |
So what does linking the containers actually do? You've learned that a link creates a |
| 168 | 163 |
source container that can provide information about itself to a recipient container. In |