Yes i guess i understood, so when i star a socker container like wordpress this app could have the need to contact another container as mysql, here project calico should be an efficient way to make this. Ok i will try, just to understand, first i run the mysql, then mesos will allocate it on a certain slave, then i need to run wordpress. How can i specify where is the mysql container in marathon UI?
2016-04-26 17:48 GMT+02:00 June Taylor <j...@umn.edu>: > Stefano, > > You would want to search for an appropriate image on Docker Hub. Here is > one I have NO experience with: https://hub.docker.com/_/mysql/ > > You would then need to learn about how the image is expecting to be > configured, so you can set it up appropriately. > > This is not really a fully thought out solution. I assume you're trying to > do this for more of a proof-of-concept, though. So it may be fine for your > needs. > > > Thanks, > June Taylor > System Administrator, Minnesota Population Center > University of Minnesota > > On Tue, Apr 26, 2016 at 10:43 AM, Stefano Bianchi <jazzist...@gmail.com> > wrote: > >> My problem is this, where can i find the mysql container? I have just >> said to marathon to rim a wordpress docker container, without specify mysql >> one. >> Il 26/apr/2016 17:39, "Aaron Carey" <aca...@ilm.com> ha scritto: >> >>> If you run the wordpress container on a different host to the mysql >>> container and use --link on the command line, does that work? >>> >>> -- >>> >>> Aaron Carey >>> Production Engineer - Cloud Pipeline >>> Industrial Light & Magic >>> London >>> 020 3751 9150 >>> >>> ------------------------------ >>> *From:* Stefano Bianchi [jazzist...@gmail.com] >>> *Sent:* 26 April 2016 16:23 >>> *To:* user@mesos.apache.org >>> *Subject:* RE: Launch docker container from Marathon UI >>> >>> Hi Aaron >>> Actually both mesos-dns and calico are running even though these >>> containers im running are not, yet, using the calico ipaddr specific in >>> json description. >>> So i guess it is a problem of bridging, i guess simply specify HOST >>> option on container field in Marathon UI >>> Il 26/apr/2016 16:59, "Aaron Carey" <aca...@ilm.com> ha scritto: >>> >>>> --link in docker should really be avoided when using marathon/mesos as >>>> it implies the containers are on the same host, but this will not always be >>>> the case when mesos schedules your containers (also I think it's being >>>> deprecated in docker anyway.. not sure though?). >>>> >>>> This problem looks like one of service discovery within the mesos >>>> cluster: how does one service contact the other when it doesn't know which >>>> host the other service may have landed on? >>>> >>>> There are several different solutions for service discovery, you can >>>> look into some like Project Calico to offer a network layer to docker or >>>> try dns based solutions like Mesos-dns or Consul (along with mesos-consul). >>>> I think marathon also has some concept of service discovery built in too if >>>> you use something like haproxy. >>>> >>>> I hope this helps! >>>> >>>> Aaron >>>> >>>> -- >>>> >>>> Aaron Carey >>>> Production Engineer - Cloud Pipeline >>>> Industrial Light & Magic >>>> London >>>> 020 3751 9150 >>>> >>>> ------------------------------ >>>> *From:* June Taylor [j...@umn.edu] >>>> *Sent:* 26 April 2016 15:22 >>>> *To:* user@mesos.apache.org >>>> *Subject:* Re: Launch docker container from Marathon UI >>>> >>>> Stefano, >>>> >>>> The docker run flag --link is intended to connect the container to >>>> another running container. I do not know how this would operate in >>>> marathon. Perhaps it would be an application group which starts up the >>>> mysql docker image first, then the Wordpress docker image after it. >>>> >>>> >>>> Thanks, >>>> June Taylor >>>> System Administrator, Minnesota Population Center >>>> University of Minnesota >>>> >>>> On Tue, Apr 26, 2016 at 9:20 AM, Stefano Bianchi <jazzist...@gmail.com> >>>> wrote: >>>> >>>>> Thanks *Rad* Gruchalski, actually i'm trying to make a json file that >>>>> "translate" this command in marathon: >>>>> >>>>> docker run --name some-wordpress --link some-mysql:mysql -d wordpress >>>>> >>>>> i guess the error is relate to the fact that i'm not specifying --link >>>>> some-mysql:mysql >>>>> My problem is that i don't know how to do that, i tried to fill >>>>> environment variable fields: >>>>> >>>>> Key = link >>>>> Value = some-mysql:mysql >>>>> >>>>> But in this way the app does not work as well. How can i configure >>>>> these env variables? >>>>> >>>>> 2016-04-26 16:01 GMT+02:00 Rad Gruchalski <ra...@gruchalski.com>: >>>>> >>>>>> It says exactly what the problem is. >>>>>> >>>>>> Start a marathon task with correct environment variables in env and >>>>>> you will be fine. >>>>>> >>>>>> Best regards, >>>>>> Radek Gruchalski >>>>>> ra...@gruchalski.com <ra...@gruchalski.com> >>>>>> de.linkedin.com/in/radgruchalski/ >>>>>> >>>>>> >>>>>> *Confidentiality: *This communication is intended for the >>>>>> above-named person and may be confidential and/or legally privileged. >>>>>> If it has come to you in error you must take no action based on it, >>>>>> nor must you copy or show it to anyone; please delete/destroy and inform >>>>>> the sender immediately. >>>>>> >>>>>> On Tuesday, 26 April 2016 at 15:56, Stefano Bianchi wrote: >>>>>> >>>>>> jupyter is working fine. >>>>>> i tried to run wordpress and i get this error in stderr of mesos: >>>>>> >>>>>> error: missing WORDPRESS_DB_HOST and MYSQL_PORT_3306_TCP environment >>>>>> variables >>>>>> >>>>>> Did you forget to --link some_mysql_container:mysql or set an >>>>>> external db >>>>>> >>>>>> with -e WORDPRESS_DB_HOST=hostname:port? >>>>>> >>>>>> >>>>>> >>>>>> Some one of you know this issue? >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> 2016-04-26 15:51 GMT+02:00 Stefano Bianchi <jazzist...@gmail.com>: >>>>>> >>>>>> However thank you so much to all! >>>>>> >>>>>> 2016-04-26 15:22 GMT+02:00 Stefano Bianchi <jazzist...@gmail.com>: >>>>>> >>>>>> i found the answer by my self sorry if i disturbed you. >>>>>> >>>>>> 2016-04-26 15:19 GMT+02:00 Stefano Bianchi <jazzist...@gmail.com>: >>>>>> >>>>>> Now that it is running, how can i check the User Interface? >>>>>> >>>>>> >>>>>> 2016-04-26 15:18 GMT+02:00 Stefano Bianchi <jazzist...@gmail.com>: >>>>>> >>>>>> Yes, now it's running!!! June you are awesome!!! >>>>>> >>>>>> 2016-04-26 15:16 GMT+02:00 Stefano Bianchi <jazzist...@gmail.com>: >>>>>> >>>>>> i have done these 2 commands, now jupyter is in deploying in >>>>>> marathon, staging in mesos. >>>>>> Is there some additional configuration needed? >>>>>> >>>>>> 2016-04-26 15:13 GMT+02:00 Stefano Bianchi <jazzist...@gmail.com>: >>>>>> >>>>>> June i tried to run your json, but the task is waiting, and if starts >>>>>> it failed immediately. >>>>>> >>>>>> I guess because i did not type this commands: >>>>>> >>>>>> >>>>>> 1. >>>>>> >>>>>> echo 'docker,mesos' > /etc/mesos-slave/containerizers >>>>>> >>>>>> 2. >>>>>> >>>>>> $ echo '5mins' > /etc/mesos-slave/executor_registration_timeout >>>>>> >>>>>> >>>>>> Could it be the problem? >>>>>> >>>>>> 2016-04-26 15:02 GMT+02:00 Stefano Bianchi <jazzist...@gmail.com>: >>>>>> >>>>>> Thank you June taylor, it is axactly what i was intending. >>>>>> if it is not disturbing you, i try jupyter notebook as well, just to >>>>>> make some tests on how to launch marathon. >>>>>> stay tuned :) >>>>>> >>>>>> 2016-04-26 14:58 GMT+02:00 Stefano Bianchi <jazzist...@gmail.com>: >>>>>> >>>>>> thanks haosdent. >>>>>> actually i have run this kind of apps through rest api. >>>>>> Now i want learn how to laung docker files. I found this exaple: >>>>>> >>>>>> { >>>>>> "container": { >>>>>> "type": "DOCKER", >>>>>> "docker": { >>>>>> "network": "HOST", >>>>>> "image": "group/image" >>>>>> }, >>>>>> "volumes": [ >>>>>> { >>>>>> "containerPath": "/etc/a", >>>>>> "hostPath": "/var/data/a", >>>>>> "mode": "RO" >>>>>> }, >>>>>> { >>>>>> "containerPath": "/etc/b", >>>>>> "hostPath": "/var/data/b", >>>>>> "mode": "RW" >>>>>> } >>>>>> ] >>>>>> }} >>>>>> >>>>>> >>>>>> I am able to link the correspondent field in the marathon UI with >>>>>> what is written in this json. >>>>>> What i need to understand is, what i should write in: >>>>>> >>>>>> "image": "group/image" >>>>>> >>>>>> i mean, with what i have to replace group and image? >>>>>> For instance, if i would run wordpress container on docker hub what i >>>>>> should put replacing "group/image" ? >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> 2016-04-26 14:30 GMT+02:00 haosdent <haosd...@gmail.com>: >>>>>> >>>>>> This is marathon REST API document: >>>>>> https://mesosphere.github.io/marathon/docs/rest-api.html#post-v2-apps >>>>>> . Usually we define a task json file and call the rest api. >>>>>> >>>>>> For example, create tasks.json which content is >>>>>> >>>>>> ``` >>>>>> { >>>>>> "id": "/test-sleep", >>>>>> "cmd": "sleep 200" >>>>>> } >>>>>> ``` >>>>>> >>>>>> And >>>>>> >>>>>> ``` >>>>>> curl -X POST -H "Content-type: application/json" >>>>>> http://${YOUR_MARATHON_ADDR}:8080/v2/apps >>>>>> -d @tasks.json >>>>>> ``` >>>>>> >>>>>> You could find more field definitions in their document. >>>>>> >>>>>> On Tue, Apr 26, 2016 at 8:24 PM, Stefano Bianchi < >>>>>> jazzist...@gmail.com> wrote: >>>>>> >>>>>> Hi guys >>>>>> >>>>>> i'm trying to follow the instructions on mesosphere documentation, >>>>>> but it is a little bit unlear for me that i am new to this world. >>>>>> i' would like to launch a wordpress container, present on docker hub >>>>>> here https://hub.docker.com/_/wordpress/ , from marathon UI but i >>>>>> don't understand the mechanism. >>>>>> I understood that i don't have to specify a command in "Command" >>>>>> field, but i don't know how to fill the dockers fields in marathon UI to >>>>>> launch wordpress container. >>>>>> Could you please help me or tell me where i can find a clearer >>>>>> documentation? >>>>>> >>>>>> Thanks. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Best Regards, >>>>>> Haosdent Huang >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>> >>>> >
