I have a Kotlin project with Bazel with some JUnit5 tests that I run with:
bazel run //my_service:tests
and this is the output:
Test run finished after 1195 ms
[ 3 containers found ]
[ 0 containers skipped ]
[ 3 containers started ]
[ 0 containers aborted ]
[ 3 containers successful ]
[ 0 containers failed ]
[ 5 tests found ]
[ 0 tests skipped ]
[ 5 tests started ]
[ 0 tests aborted ]
[ 5 tests successful ]
[ 0 tests failed ]
5 tests successful. So far, so good. But when tests are run inside Bazel Docker container, I get this output:
Test run finished after 79 ms
[ 1 containers found ]
[ 0 containers skipped ]
[ 1 containers started ]
[ 0 containers aborted ]
[ 1 containers successful ]
[ 0 containers failed ]
[ 0 tests found ]
[ 0 tests skipped ]
[ 0 tests started ]
[ 0 tests aborted ]
[ 0 tests successful ]
[ 0 tests failed ]
As you see, no tests are found. Why?
I run tests inside container with these commands:
$ docker run -it -v $(pwd):/my_service --entrypoint "" l.gcr.io/google/bazel:2.2.0 /bin/bash
$ cd my_service
$ bazel run //my_service:tests
I'm using Bazel 2.2.0 in both, local and Docker image. Why am I not getting the same output?
I found the solution. That was really weird. I was using register_toolchains rule, instead of kt_register_toolchain. Silly me.
Related
I am trying to execute some tasks on docker containers. I have 1 host dev.com.peer.2 with at least 1 container dev.com.peer.2.container1. I can't run even a debug task :
- debug:
msg: "Hello world from the Docker container '{{ inventory_hostname }}'"
I encounter this error :
fatal: [dev.com.peer.2.container1]: FAILED! => {"msg": "docker command not found in PATH"}
I understand the error but I don't get why ansible would call the docker command in the container and not on the host as defined. What did I do wrong ?
The host is defined in a previous task as follow :
TASK [debug] ****************************************************************************************************************************************************************
Monday 24 May 2021 09:25:21 +0200 (0:00:00.205) 0:10:06.777 ************
ok: [dev.com.peer.2] => {
"host_docker_inventory_list": {
"add_host": {
"groups": [
"remote_container"
],
"host_name": "dev.com.peer.2.container1",
"host_vars": {
"ansible_connection": "docker",
"ansible_docker_extra_args": "-H=tcp://*host_ip*:*api_port*",
"ansible_user": "root",
"inventory_dir": "/home/user/dev/deploy/inventories/dev",
"parenthostname": "dev.com.peer.2"
}
},
"changed": true,
"failed": false
}
}
I am running ansible 2.9.6 w/ python version = 3.8.5
I am trying to run the znc docker container in docker-compose. I have tried to follow the docs, using --makeconf, but something's wrong with my config.
$ docker-compose up
Starting server_znc_service_1 ... done
Attaching to server_znc_service_1
znc_service_1 | /entrypoint.sh: exec: line 6: znc: not found
server_znc_service_1 exited with code 127
docker-compose.yml
version: '3.2'
services:
znc_service:
image: library/znc
volumes:
- znc-cfg-volume:/znc-data
ports:
- "6697:6697"
environment:
VIRTUAL_HOST: "znc.localhost"
command: ["znc", "--makeconf"]
volumes:
znc-cfg-volume:
First of all compose container with no-start:
docker-compose up --no-start
Then if you try to run it, you will see reasons:
$ docker run -it znc
[ .. ] Checking for list of available modules...
[ >> ] ok
[ .. ] Opening config [/znc-data/configs/znc.conf]...
[ !! ] No such file
[ ** ] Restart ZNC with the --makeconf option if you wish to create this config.
[ ** ] Unrecoverable config error.
Then just run with make conf:
docker run -it znc --makeconf
[ .. ] Checking for list of available modules...
[ >> ] ok
[ ** ]
[ ** ] -- Global settings --
[ ** ]
[ ?? ] Listen on port (1025 to 65534):
I'm trying to figure out how logstash works/run inside docker, and I'm stuck with simple thing like starting and stoping logstash.
I have started logstash docker container with simple run
docker run -it --name l2 logstash
and with result:
[Api Webserver] INFO logstash.agent - Successfully started Logstash API endpoint {:port=>9600}
Next thing is runing /bin/bash with exec command, to get inside running container.
docker exec -it l2 /bin/bash
root#1b55d3a40d3f:/#
Listing services status, shows that there is no logstash service running.
Where can I find logstash service and stop/start?
root#1b55d3a40d3f:/# service --status-all
[ - ] bootlogs
[ - ] bootmisc.sh
[ - ] checkfs.sh
[ - ] checkroot-bootclean.sh
[ - ] checkroot.sh
[ - ] dbus
[ - ] hostname.sh
[ ? ] hwclock.sh
[ - ] killprocs
[ - ] motd
[ - ] mountall-bootclean.sh
[ - ] mountall.sh
[ - ] mountdevsubfs.sh
[ - ] mountkernfs.sh
[ - ] mountnfs-bootclean.sh
[ - ] mountnfs.sh
[ - ] procps
[ - ] rc.local
[ - ] rmnologin
[ - ] sendsigs
[ + ] udev
[ ? ] udev-finish
[ - ] umountfs
[ - ] umountnfs.sh
[ - ] umountroot
[ - ] urandom
[ - ] x11-common
The logstash in the container is not run as a system service, the entrypoint in the image will start a process and will keep the container up until this process ends or fails.
If you do a docker top l2 it will show the logstash process running (probaly alone) in the container.
To stop the logstash, you need to stop the container with docker stop l2, and later when you need to start it again you can run docker start l2, it will work as long you set the containers name as l2 when you create or first run it.
Docker Start help: https://docs.docker.com/engine/reference/commandline/start/
Docker stop help: https://docs.docker.com/engine/reference/commandline/stop/
Docker create: https://docs.docker.com/engine/reference/commandline/create/
Made computation docker which runs fine locally. Uploaded it to Gcloud and could run it. But what I really need is to run hundreds of instances with different argument each.
docker run -t dxyz arg0
docker run -t dxyz arg1
docker run -t dxyz arg2
...
What is the best way to do it? I tried Kubctl pods but looks like they supposed to be identical
This is pretty clunky due to the nesting and because it requires you to specify the replication controller's name and image twice, but you can technically use
kubectl run dxyz0 --image=dxyz --overrides='{"apiVersion": "v1", "spec": {"template": {"spec": {"containers": [ {"name:" "dxyz0", "image": "dxyz", "args": [ "arg0" ] } ] } } } }'
kubectl run dxyz1 --image=dxyz --overrides='{"apiVersion": "v1", "spec": {"template": {"spec": {"containers": [ {"name:" "dxyz1", "image": "dxyz", "args": [ "arg1" ] } ] } } } }'
...
when I run a docker container as a marathon job, it creates a docker container in the active mesos slave system. when suspend or destroy the docker job what I expect that marathon should delete the docker container as its no longer required. But the container does not get deleted. I have to delete them manually every time marathon restart a docker container job.
is there any way to delete these unwanted containers automatically?
Edit:
Adding json file for initiating a marathon job
{
"id": "pga-docker",
"cmd":"sh pga-setup.sh",
"cpus": 0.5,
"mem": 1024.0,
"container": {
"type": "DOCKER",
"docker": {
"image": "pga:test",
"parameters": [
{ "key": "env", "value": "SERVER_HOST=value" },
{ "key": "env", "value": "SERVER_PORT=value" }
],
"network": "BRIDGE",
"portMappings": [
{ "containerPort": 80, "hostPort": 0}
]
}
}
}
Marathon will restart a docker container which failed so that you have the number of instances you requested. It could be that you see stopped/failed containers which were not cleaned up by Mesos. This could be related to the fact that Mesos delays container cleanup until GC.
see https://issues.apache.org/jira/browse/MESOS-1656
It is the behavior of Marathon, because it is meant for long running services, as soon the task is completed, Marathon assumes it has been terminated in that host and immediately it will assign a new instance for running the application. If you need one of task you can use Chronos, so it makes the task to run only one time. I have written a script to do this automatically for marathon.
start=$1
end=$2
for (( c=$start; c<=$end; c++ ))
do
echo "deleting:$c"
sleep 10
var=$(curl -X GET http://localhost:8080/v2/apps/docker-app-$c | grep "startedAt")
echo "$var"
if [[ $var == *"startedAt"* ]]
then
curl -X DELETE http://localhost:8080/v2/apps/docker-app-$c
echo "going to delete"
else
echo "application not started yet"
fi
sleep 1
done
echo "Completed!"