salt-master does not respond

[lrhazi]

Fresh install of salt git develop, in docker container from centos6 or centos7 images.
Staring master in foreground, never seems to print anything after:

[DEBUG   ] Reading configuration from /etc/salt/master
[INFO    ] Found minion id from generate_minion_id(): saltmaster
[INFO    ] Found minion id from generate_minion_id(): saltmaster
[DEBUG   ] Reading configuration from /etc/salt/master
[DEBUG   ] Reading configuration from /etc/salt/master
[INFO    ] Found minion id from generate_minion_id(): saltmaster
[DEBUG   ] Reading configuration from /etc/salt/master
[INFO    ] Found minion id from generate_minion_id(): saltmaster
[DEBUG   ] Reading configuration from /etc/salt/master

this command times out:

➜  ~  salt '*' test.ping     
Salt request timed out. The master is not responding. If this error persists after verifying the master is up, worker_threads may need to be increased.

[lrhazi]

Here is a minimum dockerfile to reproduce the issue:

FROM centos:7
# Update System
RUN yum update -y && yum -y install epel-release curl 
RUN curl -L https://bootstrap.saltstack.com | sh -s -- -M -N -P -F -I -Z -X git develop; exit 0
RUN yum clean all

# Ports
EXPOSE 4505 4506 

# Run Command
CMD salt-master -l debug

build it:

docker build -t salt-master .

run it:

docker run -d --name saltmaster -h saltmaster -p 4505:4505 -p 4506:4506  salt-master

Watch the logs:

# docker logs -f saltmaster
...
[DEBUG   ] Reading configuration from /etc/salt/master
[INFO    ] Found minion id from generate_minion_id(): saltmaster
[DEBUG   ] Reading configuration from /etc/salt/master
[INFO    ] Found minion id from generate_minion_id(): saltmaster
[DEBUG   ] Reading configuration from /etc/salt/master
[INFO    ] Found minion id from generate_minion_id(): saltmaster
[INFO    ] Found minion id from generate_minion_id(): saltmaster
[DEBUG   ] Reading configuration from /etc/salt/master
[DEBUG   ] Reading configuration from /etc/salt/master

[lrhazi]

I tried with https://github.com/phusion/baseimage-docker, instead of plain centos images and its seems to work fine. so I guess this is Salt in Docker container issue, and not Salt proper. Feel free to close.

Thanks.

[basepi]

Thanks for the update @lrhazi !

[basepi]

PS: If you wanted to debug this more, I would recommend getting into the docker container, stopping the master, and then starting it in the foreground with debug loglevel:

salt-master -ldebug

Might give you a better idea of what's going on.

[lrhazi]

I am happy with the my new container image, but I can help debug this if needed. I did what you suggest before, it behaves exactly the same way.. startup seems to stop at same spot!

[basepi]

Well, if you're happy, I'm happy, so let's hold off for now. ;)

[garo]

I have the same issue here with one of my salt masters: I can't execute any commands with salt from there (for example: salt '*' test.ping).

I'm not using docker and I've installed salt with bootstrap script, using version 2015.5.0

[wangwenchao]

aha I get it ,

please change the salt master config file the follow:

user: root
return_port: 4506
publish_port : 4505
pid:

after salt-master -l debug

I find the debug verbose tip me that it cant excute some system command need but no permission