docker-compose exec Terminal output width is too narrow

[heylookalive]

When using docker-compose exec... the terminal output is too narrow, see screenshot:
http://i68.tinypic.com/xlmc5y.jpg

Codebase

Drupal mounted codebase

Host OS

macOS High Sierra

Docker info output

Containers: 7
 Running: 7
 Paused: 0
 Stopped: 0
Images: 8
Server Version: 18.03.0-ce
Storage Driver: aufs
 Root Dir: /var/lib/docker/aufs
 Backing Filesystem: extfs
 Dirs: 87
 Dirperm1 Supported: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: bridge host ipvlan macvlan null overlay
 Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: cfd04396dc68220d1cecbe686a6cc3aa5ce3667c
runc version: 4fc53a81fb7c994640722ac585fa9ca548971871
init version: 949e6fa
Security Options:
 seccomp
  Profile: default
Kernel Version: 4.9.87-linuxkit-aufs
Operating System: Docker for Mac
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 1.952GiB
Name: linuxkit-025000000001
ID: ITDI:5O55:TCQS:XJVO:BN6E:QX2H:A5JL:T7KL:TTF3:ZPMI:65WT:WNXE
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): true
 File Descriptors: 78
 Goroutines: 86
 System Time: 2018-04-11T15:24:24.807581168Z
 EventsListeners: 3
HTTP Proxy: docker.for.mac.http.internal:3128
HTTPS Proxy: docker.for.mac.http.internal:3129
Registry: https://index.docker.io/v1/
Labels:
Experimental: true
Insecure Registries:
 127.0.0.0/8
Live Restore Enabled: false

Docker compose file

version: "2"

services:
  mariadb:
    image: wodby/mariadb:10.1-2.3.5
    environment:
      MYSQL_ROOT_PASSWORD: password
      MYSQL_DATABASE: drupal
      MYSQL_USER: drupal
      MYSQL_PASSWORD: drupal
    volumes:
      - ./mariadb-init:/docker-entrypoint-initdb.d # Place init .sql file(s) here.

  php:
    image: wodby/drupal-php:7.0-3.3.1
    environment:
      PHP_SENDMAIL_PATH: /usr/sbin/sendmail -t -i -S mailhog:1025
      PHP_FPM_CLEAR_ENV: "no"
      DB_HOST: mariadb
      DB_USER: drupal
      DB_PASSWORD: drupal
      DB_NAME: drupal
      DB_DRIVER: mysql
    volumes:
      - ./:/var/www/html

  nginx:
    image: wodby/drupal-nginx:7-1.13-3.0.1
    depends_on:
      - php
    environment:
      NGINX_STATIC_CONTENT_OPEN_FILE_CACHE: "off"
      NGINX_ERROR_LOG_LEVEL: debug
      NGINX_BACKEND_HOST: php
      NGINX_SERVER_ROOT: /var/www/html
    volumes:
      - ./:/var/www/html
    labels:
      - 'traefik.backend=nginx'
      - 'traefik.port=80'
      - 'traefik.frontend.rule=Host:drupal.docker.localhost'

  pma:
    image: phpmyadmin/phpmyadmin
    environment:
      PMA_HOST: mariadb
      PMA_USER: drupal
      PMA_PASSWORD: drupal
      PHP_UPLOAD_MAX_FILESIZE: 1G
      PHP_MAX_INPUT_VARS: 1G
    labels:
      - 'traefik.backend=pma'
      - 'traefik.port=80'
      - 'traefik.frontend.rule=Host:pma.drupal.docker.localhost'

  mailhog:
    image: mailhog/mailhog
    labels:
      - 'traefik.backend=mailhog'
      - 'traefik.port=8025'
      - 'traefik.frontend.rule=Host:mailhog.drupal.docker.localhost'

  portainer:
    image: portainer/portainer
    command: --no-auth -H unix:///var/run/docker.sock
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    labels:
      - 'traefik.backend=portainer'
      - 'traefik.port=9000'
      - 'traefik.frontend.rule=Host:portainer.drupal.docker.localhost'

  traefik:
    image: traefik
    command: -c /dev/null --web --docker --logLevel=INFO
    ports:
      - '8000:80'
      - '8080:8080' # Dashboard
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock

volumes:
  codebase:

[igorbiki]

Hi, I'm seeing same on my dev env. Also, you may want to check how long is your command line prompt when logged in to container, I had to add "COLUMNS=500" to my .bashrc file in php container. Since I did install new OS, I thought its specific to my env.

I'm using "docker-compose exec php bash" to login to container and then run drush / drupal (console) stuff.

[johandenhollander]

@heylookalive Are you sure this is not just a problem with drush?
Sometimes I have the same experience.
Just now with a drush updb -y command. But the drush ms command shows correctly...

[csandanov]

We use -e COLUMNS=$COLUMNS -e LINES=$LINES fix at Wodby for Kubernetes commands, I guess we should add these to make shell command

[vstanchev]

I tried this in the Makefile:

shell:
        docker exec -ti -e COLUMNS=$(COLUMNS) -e LINES=$(LINES) $(shell docker ps --filter name='$(PROJECT_NAME)_php' --format "{{ .ID }}") sh

and it worked, but I noticed that $COLUMNS and $LINES are actually empty in the container shell, but not empty on my host shell.

Turns out setting them to empty also "fixes" the narrow shell issue.

shell:
        docker exec -ti -e COLUMNS= -e LINES= $(shell docker ps --filter name='$(PROJECT_NAME)_php' --format "{{ .ID }}") sh

Can someone elaborate on a possible reason why and how does that work? I'm on Linux with zsh.

[csandanov]

COLUMNS and LINES are set by the shell, but not exported, which means that they are not added to the environment of subsequently executed commands.
SOURCE: https://stackoverflow.com/a/22588625/1826109

See referenced commit, we use tput to get the values.

I guess we'll see the fix in docker (moby) itself in the future moby/moby#35407

[csandanov]

make shell fix with $COLUMNS has been added in 5.0.6 release