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--- docker:name_a_container [2020/04/15 21:42] – peter
+++ docker:name_a_container [2020/05/13 08:41] (current) – removed peter
@@ Line 1: / Line 1: @@
-====== Docker - Name a container ======
-By adding **<nowiki>--name=meaningful_name</nowiki>** to the **docker run** command, the name becomes more recognizable in interactive sessions as well as in the output of commands like **docker ps**.
-There are limitations, however since container names must be unique, you cannot use deliberate naming and scale a service beyond one container.
-On the Command Line or in a Dockerfile:
-<code bash>
-docker run --name=meaningful_name
-</code>
-----
-For example, if we ran a container based on the nginx base image and started it like this:
-<code bash>
-docker run --name nginx -d nginx
-</code>
-The name would appear in the list of running containers:
-<code bash>
-docker ps
-</code>
-returns:
-<code bash>
-CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                NAMES
-f333ef7216        nginx               "nginx -g 'daemon off"   15 seconds ago      Up 14 seconds       80/tcp, 443/tcp      nginx
-</code>
-While the name appears in the output of **docker ps** and can be used to manage the container, it will not appear in the command prompt of the container if you attach to it or in log files.
-In order to accomplish that, you'll also need to assign a hostname.