Update documentation according to opts updates
@@ -208,19 +208,39 @@ An example of a file passed with `--env-file`
# this is a comment
TEST_APP_DEST_HOST=10.10.0.127
TEST_APP_DEST_PORT=8888
+ _TEST_BAR=FOO
+ TEST_APP_42=magic
+ helloWorld=true
+ # 123qwe=bar <- is not valid
# pass through this variable from the caller
TEST_PASSTHROUGH
- $ sudo TEST_PASSTHROUGH=howdy docker run --env-file ./env.list busybox env
- HOME=/
+ $ TEST_PASSTHROUGH=howdy docker run --env-file ./env.list busybox env
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
HOSTNAME=5198e0745561
TEST_FOO=BAR
TEST_APP_DEST_HOST=10.10.0.127
TEST_APP_DEST_PORT=8888
+ _TEST_BAR=FOO
+ TEST_APP_42=magic
+ helloWorld=true
TEST_PASSTHROUGH=howdy
+ HOME=/root
- $ docker run --name console -t -i ubuntu bash
+ $ docker run --env-file ./env.list busybox env
+ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+ HOSTNAME=5198e0745561
+ TEST_FOO=BAR
+ TEST_APP_DEST_HOST=10.10.0.127
+ TEST_APP_DEST_PORT=8888
+ _TEST_BAR=FOO
+ TEST_APP_42=magic
+ helloWorld=true
+ TEST_PASSTHROUGH=
+ HOME=/root
+
+> **Note**: Environment variables names must consist solely of letters, numbers,
+> and underscores - and cannot start with a number.
A label is a a `key=value` pair that applies metadata to a container. To label a container with two labels:
