Even though command is blank, you must set shell to false. There's a ticket for this that I don't have off-hand.
On Thursday, September 4, 2014, Steven Schlansker <[email protected]> wrote: > I am trying to integrate the Docker containerizer into the Singularity > framework (https://github.com/HubSpot/Singularity) > > I have filled in my containerInfo: > "containerInfo": { > "type": "DOCKER", > "docker": { > "image": "registry.mesos-vpcqa.otenv.com/demo-server:latest-master" > } > } > > I am leaving ‘command’ blank as I wish to have the default command > executed. > > Interestingly enough, the Docker containerizer seems to pass on the > TaskInfo: > I0904 23:12:13.941849 32497 exec.cpp:132] Version: 0.20.0 > I0904 23:12:13.947185 32500 exec.cpp:206] Executor registered on slave > 20140826-180432-1594050058-5050-23467-6 > F0904 23:12:13.949040 32502 executor.cpp:134] Check failed: > task.command().has_value() Shell command of task > DemoService-DemoService.18-1409872328807-2-10-us_west_2a is not specified! > *** Check failure stack trace: *** > @ 0x7f54dc76b4bd google::LogMessage::Fail() > @ 0x7f54dc76d2fd google::LogMessage::SendToLog() > @ 0x7f54dc76b0ac google::LogMessage::Flush() > @ 0x7f54dc76dbf9 google::LogMessageFatal::~LogMessageFatal() > @ 0x42abc2 > mesos::internal::CommandExecutorProcess::launchTask() > @ 0x7f54dc7160e2 process::ProcessManager::resume() > @ 0x7f54dc7163ec process::schedule() > @ 0x7f54db190182 start_thread > @ 0x7f54daebd38d (unknown) > Aborted > > but if I add some (otherwise unnecessary) URIs to fetch it then is happy > to accept it > > "uris": [ "https://my.s3.amazonaws.com/something.tar.gz”] > > then I start to see Docker containerizer output in the slave log: > > I0904 22:58:24.092098 1288 docker.cpp:815] Starting container > '479dedef-4312-4441-be72-6570caaf2b8a' for task > 'DemoService-DemoService.15-1409871503777-2-10-us_west_2a' (and executor > 'DemoService-DemoService.15-1409871503777-2-10-us_west_2a') of framework > 'Singularity' > I0904 22:58:28.327430 1288 slave.cpp:2535] Monitoring executor > 'DemoService-DemoService.15-1409871503777-2-10-us_west_2a' of framework > 'Singularity' in container '479dedef-4312-4441-be72-6570caaf2b8a' > I0904 22:58:28.368155 1291 status_update_manager.cpp:320] Received status > update TASK_RUNNING (UUID: a428c917-973d-4c7e-a8a3-43fdf9b49e99) for task > DemoService-DemoService.15-1409871503777-2-10-us_west_2a of framework > Singularity > I0904 22:58:29.331042 1291 slave.cpp:2087] Handling status update > TASK_FINISHED (UUID: de9b8003-9b61-4b87-98fc-32b01f875a95) for task > DemoService-DemoService.15-1409871503777-2-10-us_west_2a of framework > Singularity from executor(1)@10.70.6.186:56465 > I0904 22:58:30.689954 1291 docker.cpp:1720] Executor for container > '479dedef-4312-4441-be72-6570caaf2b8a' has exited > I0904 22:58:30.690076 1291 docker.cpp:1545] Destroying container > '479dedef-4312-4441-be72-6570caaf2b8a' > I0904 22:58:30.690500 1291 docker.cpp:1642] Running docker kill on > container '479dedef-4312-4441-be72-6570caaf2b8a' > > stderr: > WARNING: Logging before InitGoogleLogging() is written to STDERR > I0904 22:58:24.317865 26387 fetcher.cpp:126] Downloading ‘xxx' to > '/mnt/mesos/slaves/20140826-180432-1594050058-5050-23467-8/frameworks/Singularity/executors/DemoService-DemoService.15-1409871503777-2-10-us_west_2a/runs/479dedef-4312-4441-be72-6570caaf2b8a/xxx' > I0904 22:58:24.387418 26387 fetcher.cpp:64] Extracted resource > '/mnt/mesos/slaves/20140826-180432-1594050058-5050-23467-8/frameworks/Singularity/executors/DemoService-DemoService.15-1409871503777-2-10-us_west_2a/runs/479dedef-4312-4441-be72-6570caaf2b8a/xxx' > into > '/mnt/mesos/slaves/20140826-180432-1594050058-5050-23467-8/frameworks/Singularity/executors/DemoService-DemoService.15-1409871503777-2-10-us_west_2a/runs/479dedef-4312-4441-be72-6570caaf2b8a' > I0904 22:58:27.870132 26811 exec.cpp:132] Version: 0.20.0 > I0904 22:58:28.155580 26819 exec.cpp:206] Executor registered on slave > 20140826-180432-1594050058-5050-23467-8 > > stdout: > > Registered executor on 10.70.6.186 > Starting task DemoService-DemoService.15-1409871503777-2-10-us_west_2a > Forked command at 26949 > /bin/sh -c exit `docker wait mesos-479dedef-4312-4441-be72-6570caaf2b8a` > Command exited with status 0 (pid: 26949) > > When I try to lookup the Docker container with ‘docker ps -a’ it looks > like no container was ever created, and then the ‘docker wait’ exits > immediately. > > Any clues as to how I could debug such a situation? > Thanks! > Steven
