Fix build-image.sh example comments
Environment variables used to control settings in elements need to be
exported so that they are available to the script's subprocesses, so fix
the documented examples so they can easily be un-commented and used.
@@ -54,8 +54,8 @@ fi
## If your firewall won't allow outbound DNS connections, you'll want
## to set these to local resolvers
-# NODEPOOL_STATIC_NAMESERVER_V4=192.168.0.1
-# NODEPOOL_STATIC_NAMESERVER_V6=2000::...
+# export NODEPOOL_STATIC_NAMESERVER_V4=192.168.0.1
+# export NODEPOOL_STATIC_NAMESERVER_V6=2000::...
## This will get dib to drop you into a shell on error, useful for debugging
# export break="after-error"
@@ -85,12 +85,12 @@ fi
## password.
## defaults
-## DIB_DEV_USER_USERNAME=devuser
-## DIB_DEV_USER_AUTHORIZED_KEYS=$HOME/.ssh/id_rsa.pub
+## export DIB_DEV_USER_USERNAME=devuser
+## export DIB_DEV_USER_AUTHORIZED_KEYS=$HOME/.ssh/id_rsa.pub
# EXTRA_ELEMENTS+=devuser
-# DIB_DEV_USER_PWDLESS_SUDO=1
-# DIB_DEV_USER_PASSWORD=devuser
+# export DIB_DEV_USER_PWDLESS_SUDO=1
+# export DIB_DEV_USER_PASSWORD=devuser
## The list of elements below should match those configured
## in nodepool/nodepool.yaml
