In this post i will show how to create a minimalist docker file suitable for running gui application. The steps are as follows:
1. Create docker file:
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FROM alpine:latest
RUN apk update
RUN apk upgrade
RUN apk --no-cache --update add x11vnc
RUN apk --no-cache add xvfb xfce4 xfce4-terminal supervisor sudo \
&& addgroup alpine \
&& adduser -G alpine -s /bin/sh -D alpine \
&& echo "alpine:alpine" | /usr/sbin/chpasswd \
&& echo "alpine ALL=NOPASSWD: ALL" >> /etc/sudoers \
&& rm -rf /apk /tmp/* /var/cache/apk/*
USER alpine
ENV USER=alpine \
DISPLAY=:1 \
LANG=en_US.UTF-8 \
LANGUAGE=en_US.UTF-8 \
HOME=/home/alpine \
TERM=xterm \
SHELL=/bin/bash \
VNC_PASSWD=alpinelinux \
VNC_PORT=5900 \
VNC_RESOLUTION=1024x768 \
VNC_COL_DEPTH=24 \
NOVNC_PORT=6080 \
NOVNC_HOME=/opt/noVNC
RUN sudo apk update \
&& sudo apk add git \
&& sudo git clone https://github.com/novnc/noVNC /opt/noVNC \
&& sudo apk add bash
WORKDIR $HOME
EXPOSE $VNC_PORT $NOVNC_PORT
COPY supervisord.conf /etc/supervisord.conf
CMD ["sudo","/usr/bin/supervisord","-c","/etc/supervisord.conf"]
3. In order to run supervisor we have to give supervisord.conf file for supervisord configuration. Detail configuration is as follows:
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; Sample supervisor config file.
;
; For more information on the config file, please see:
; http://supervisord.org/configuration.html
;
; Notes:
; - Shell expansion ("~" or "$HOME") is not supported. Environment
; variables can be expanded using this syntax: "%(ENV_HOME)s".
; - Quotes around values are not supported, except in the case of
; the environment= options as shown below.
; - Comments must have a leading space: "a=b ;comment" not "a=b;comment".
; - Command will be truncated if it looks like a config file comment, e.g.
; "command=bash -c 'foo ; bar'" will truncate to "command=bash -c 'foo ".
;
; Warning:
; Paths throughout this example file use /tmp because it is available on most
; systems. You will likely need to change these to locations more appropriate
; for your system. Some systems periodically delete older files in /tmp.
; Notably, if the socket file defined in the [unix_http_server] section below
; is deleted, supervisorctl will be unable to connect to supervisord.
[unix_http_server]
file=/run/supervisord.sock ; the path to the socket file
;chmod=0700 ; socket file mode (default 0700)
;chown=nobody:nogroup ; socket file uid:gid owner
;username=user ; default is no username (open server)
;password=123 ; default is no password (open server)
; Security Warning:
; The inet HTTP server is not enabled by default. The inet HTTP server is
; enabled by uncommenting the [inet_http_server] section below. The inet
; HTTP server is intended for use within a trusted environment only. It
; should only be bound to localhost or only accessible from within an
; isolated, trusted network. The inet HTTP server does not support any
; form of encryption. The inet HTTP server does not use authentication
; by default (see the username= and password= options to add authentication).
; Never expose the inet HTTP server to the public internet.
;[inet_http_server] ; inet (TCP) server disabled by default
;port=127.0.0.1:9001 ; ip_address:port specifier, *:port for all iface
;username=user ; default is no username (open server)
;password=123 ; default is no password (open server)
[supervisord]
logfile=/var/log/supervisord.log ; main log file; default $CWD/supervisord.log
;logfile_maxbytes=50MB ; max main logfile bytes b4 rotation; default 50MB
;logfile_backups=10 ; # of main logfile backups; 0 means none, default 10
;loglevel=info ; log level; default info; others: debug,warn,trace
;pidfile=/run/supervisord.pid ; supervisord pidfile; default supervisord.pid
;nodaemon=false ; start in foreground if true; default false
;silent=false ; no logs to stdout if true; default false
;minfds=1024 ; min. avail startup file descriptors; default 1024
;minprocs=200 ; min. avail process descriptors;default 200
;umask=022 ; process file creation umask; default 022
;user=chrism ; setuid to this UNIX account at startup; recommended if root
;identifier=supervisor ; supervisord identifier, default is 'supervisor'
;directory=/tmp ; default is not to cd during start
;nocleanup=true ; don't clean up tempfiles at start; default false
;childlogdir=/var/log/supervisor ; 'AUTO' child log dir, default $TEMP
;environment=KEY="value" ; key value pairs to add to environment
;strip_ansi=false ; strip ansi escape codes in logs; def. false
; The rpcinterface:supervisor section must remain in the config file for
; RPC (supervisorctl/web interface) to work. Additional interfaces may be
; added by defining them in separate [rpcinterface:x] sections.
[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
; The supervisorctl section configures how supervisorctl will connect to
; supervisord. configure it match the settings in either the unix_http_server
; or inet_http_server section.
[supervisorctl]
serverurl=unix:///run/supervisord.sock ; use a unix:// URL for a unix socket
;serverurl=http://127.0.0.1:9001 ; use an http:// url to specify an inet socket
;username=chris ; should be same as in [*_http_server] if set
;password=123 ; should be same as in [*_http_server] if set
;prompt=mysupervisor ; cmd line prompt (default "supervisor")
;history_file=~/.sc_history ; use readline history if available
; The sample program section below shows all possible program subsection values.
; Create one or more 'real' program: sections to be able to control them under
; supervisor.
;[program:theprogramname]
;command=/bin/cat ; the program (relative uses PATH, can take args)
;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
;numprocs=1 ; number of processes copies to start (def 1)
;directory=/tmp ; directory to cwd to before exec (def no cwd)
;umask=022 ; umask for process (default None)
;priority=999 ; the relative start priority (default 999)
;autostart=true ; start at supervisord start (default: true)
;startsecs=1 ; # of secs prog must stay up to be running (def. 1)
;startretries=3 ; max # of serial start failures when starting (default 3)
;autorestart=unexpected ; when to restart if exited after running (def: unexpected)
;exitcodes=0 ; 'expected' exit codes used with autorestart (default 0)
;stopsignal=QUIT ; signal used to kill process (default TERM)
;stopwaitsecs=10 ; max num secs to wait b4 SIGKILL (default 10)
;stopasgroup=false ; send stop signal to the UNIX process group (default false)
;killasgroup=false ; SIGKILL the UNIX process group (def false)
;user=chrism ; setuid to this UNIX account to run the program
;redirect_stderr=true ; redirect proc stderr to stdout (default false)
;stdout_logfile=/a/path ; stdout log path, NONE for none; default AUTO
;stdout_logfile_maxbytes=1MB ; max # logfile bytes b4 rotation (default 50MB)
;stdout_logfile_backups=10 ; # of stdout logfile backups (0 means none, default 10)
;stdout_capture_maxbytes=1MB ; number of bytes in 'capturemode' (default 0)
;stdout_events_enabled=false ; emit events on stdout writes (default false)
;stdout_syslog=false ; send stdout to syslog with process name (default false)
;stderr_logfile=/a/path ; stderr log path, NONE for none; default AUTO
;stderr_logfile_maxbytes=1MB ; max # logfile bytes b4 rotation (default 50MB)
;stderr_logfile_backups=10 ; # of stderr logfile backups (0 means none, default 10)
;stderr_capture_maxbytes=1MB ; number of bytes in 'capturemode' (default 0)
;stderr_events_enabled=false ; emit events on stderr writes (default false)
;stderr_syslog=false ; send stderr to syslog with process name (default false)
;environment=A="1",B="2" ; process environment additions (def no adds)
;serverurl=AUTO ; override serverurl computation (childutils)
; The sample eventlistener section below shows all possible eventlistener
; subsection values. Create one or more 'real' eventlistener: sections to be
; able to handle event notifications sent by supervisord.
;[eventlistener:theeventlistenername]
;command=/bin/eventlistener ; the program (relative uses PATH, can take args)
;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
;numprocs=1 ; number of processes copies to start (def 1)
;events=EVENT ; event notif. types to subscribe to (req'd)
;buffer_size=10 ; event buffer queue size (default 10)
;directory=/tmp ; directory to cwd to before exec (def no cwd)
;umask=022 ; umask for process (default None)
;priority=-1 ; the relative start priority (default -1)
;autostart=true ; start at supervisord start (default: true)
;startsecs=1 ; # of secs prog must stay up to be running (def. 1)
;startretries=3 ; max # of serial start failures when starting (default 3)
;autorestart=unexpected ; autorestart if exited after running (def: unexpected)
;exitcodes=0 ; 'expected' exit codes used with autorestart (default 0)
;stopsignal=QUIT ; signal used to kill process (default TERM)
;stopwaitsecs=10 ; max num secs to wait b4 SIGKILL (default 10)
;stopasgroup=false ; send stop signal to the UNIX process group (default false)
;killasgroup=false ; SIGKILL the UNIX process group (def false)
;user=chrism ; setuid to this UNIX account to run the program
;redirect_stderr=false ; redirect_stderr=true is not allowed for eventlisteners
;stdout_logfile=/a/path ; stdout log path, NONE for none; default AUTO
;stdout_logfile_maxbytes=1MB ; max # logfile bytes b4 rotation (default 50MB)
;stdout_logfile_backups=10 ; # of stdout logfile backups (0 means none, default 10)
;stdout_events_enabled=false ; emit events on stdout writes (default false)
;stdout_syslog=false ; send stdout to syslog with process name (default false)
;stderr_logfile=/a/path ; stderr log path, NONE for none; default AUTO
;stderr_logfile_maxbytes=1MB ; max # logfile bytes b4 rotation (default 50MB)
;stderr_logfile_backups=10 ; # of stderr logfile backups (0 means none, default 10)
;stderr_events_enabled=false ; emit events on stderr writes (default false)
;stderr_syslog=false ; send stderr to syslog with process name (default false)
;environment=A="1",B="2" ; process environment additions
;serverurl=AUTO ; override serverurl computation (childutils)
; The sample group section below shows all possible group values. Create one
; or more 'real' group: sections to create "heterogeneous" process groups.
;[group:thegroupname]
;programs=progname1,progname2 ; each refers to 'x' in [program:x] definitions
;priority=999 ; the relative start priority (default 999)
; The [include] section can just contain the "files" setting. This
; setting can list multiple files (separated by whitespace or
; newlines). It can also contain wildcards. The filenames are
; interpreted as relative to this file. Included files *cannot*
; include files themselves.
[include]
files = /etc/supervisor.d/*.ini
[supervisord]
nodaemon=true
[program:xvfb]
command=/usr/bin/Xvfb :1 -screen 0 1920x1080x24
autorestart=true
user=alpine
priority=100
[program:x11vnc]
command=/usr/bin/x11vnc -xkb -noxrecord -noxfixes -noxdamage -display :1 -nopw -wait 5 -shared -permitfiletransfer -tightfilexfer
user=alpine
autorestart=true
priority=200
[program:startxfce4]
priority=10
directory=/root
command=/usr/bin/startxfce4
user=root
autostart=true
autorestart=true
stopsignal=QUIT
environment=DISPLAY=":1",HOME="/root"
[program:novnc]
priority=25
directory=/opt/noVNC
command=bash /opt/noVNC/utils/novnc_proxy --vnc localhost:5900 --listen 6080
user=root
autostart=true
autorestart=true
stopsignal=QUIT
stopasgroup=true
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docker build -t="alpine_vnc" .
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docker create -t -i -p 5900:5900 -p 6080:6080 --name alpine_gui alpine_vncCode: Select all
docker start alpine_gui 8. Connect novnc from browser with http://<host ip address>:6080
9. 64 bit windows application can be installed in wine and will run without any issue.
10. When installing 32 bit windows application there will be error for MFC42.dll issue. To solve this we have to install winetricks available on edge repositories.
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docker exec -it alpine_gui /bin/bash
cd /etc/apk
sudo vi repositories
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http://dl-cdn.alpinelinux.org/alpine/edge/community
http://dl-cdn.alpinelinux.org/alpine/edge/testing
11. Now install winetricks
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sudo apk add winetricks12. After winetricks is installed, install MFC42.dll
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winetricks -q mfc4213. Now you can run any windows 32 bit program in wine.
Thanks
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