# How to install ODK Central on Synology NAS with Docker **URL:** \ **Category:** Support\ **Tags:** odk-central\ **Created:** [April 20, 2021, 10:10am UTC](https://forum.getodk.org/t/how-to-install-odk-central-on-synology-nas-with-docker/33251 "2021-04-20T10:10:07Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![dkonan](https://getodk.b-cdn.net/user_avatar/forum.getodk.org/dkonan/32/6009_2.png) [@dkonan](https://forum.getodk.org/u/dkonan)\ **Post date:** [April 20, 2021, 10:10am UTC](https://forum.getodk.org/t/how-to-install-odk-central-on-synology-nas-with-docker/33251/1 "2021-04-20T10:10:07Z")
After read many documentations about installing ODK central on Docker and ask many questions to @mathieubossaert, i decide to install ODK central on my NAS Synology (DS218+, RAM = 10GO). After a first attempt to install by following the instructions in the link [https://docs.getodk.org/central-install-digital-ocean/](https://docs.getodk.org/central-install-digital-ocean/) and with the support of @shadoworker5, I get errors. I put in an attached file the installation syntax, the outputs as well as the errors. To better understand, I put the following legend: - **Highlighted in green:** Syntax recommended in the guide - **Words in red:** Errors produced in the outputs - **Words in green:** Outputs indicating that the process went well. Please i need assistance. [ODKCentral\_Installing\_errors.docx](https://forum.getodk.org/uploads/short-url/b2Ve5ZGlUd0hxtikuj5zQv5JeOI.docx) (44.8 KB) ---
**Author:** ![yanokwa](https://getodk.b-cdn.net/user_avatar/forum.getodk.org/yanokwa/32/1695_2.png) [@yanokwa](https://forum.getodk.org/u/yanokwa)\ **Post date:** [April 20, 2021, 12:52pm UTC](https://forum.getodk.org/t/how-to-install-odk-central-on-synology-nas-with-docker/33251/2 "2021-04-20T12:52:50Z")
The key error seems to be ```auto ERROR: for mail Cannot start service mail: Bind mount failed: '/volume1/homes/dkonan/central/files/dkim/config' does not exists ERROR: Encountered errors while bringing up the project. ``` Your dkim folder should have the following structure: - `config` folder - `rsa.private` folder - `config.disabled` file For some reason, it sounds like you don't have the config folder. Try creating it and trying another `docker-compose up -d`. ---
**Author:** ![dkonan](https://getodk.b-cdn.net/user_avatar/forum.getodk.org/dkonan/32/6009_2.png) [@dkonan](https://forum.getodk.org/u/dkonan)\ **Post date:** [April 20, 2021, 4:28pm UTC](https://forum.getodk.org/t/how-to-install-odk-central-on-synology-nas-with-docker/33251/3 "2021-04-20T16:28:42Z")
**Hi @yanokwa,** Many thinks for your response. After creating the folder i've an error. Pease see it in the screenshots below ![image](https://getodk.b-cdn.net/uploads/default/original/2X/2/20e46e2856e42c82c06b229f0ec9f33150268ba7.png) ---
**Author:** ![yanokwa](https://getodk.b-cdn.net/user_avatar/forum.getodk.org/yanokwa/32/1695_2.png) [@yanokwa](https://forum.getodk.org/u/yanokwa)\ **Post date:** [April 20, 2021, 4:51pm UTC](https://forum.getodk.org/t/how-to-install-odk-central-on-synology-nas-with-docker/33251/4 "2021-04-20T16:51:39Z")
Many of these errors seem to stem from the fact that Synology isn't a standard Linux. This is a very unsupported configuration, so you'll have to take more ownership here and try to figure the issues out. In this case, try creating the `/data/transfer/` folder and go from there. ---
**Author:** ![dkonan](https://getodk.b-cdn.net/user_avatar/forum.getodk.org/dkonan/32/6009_2.png) [@dkonan](https://forum.getodk.org/u/dkonan)\ **Post date:** [April 22, 2021, 11:03pm UTC](https://forum.getodk.org/t/how-to-install-odk-central-on-synology-nas-with-docker/33251/5 "2021-04-22T23:03:21Z")
**Hi Team** I apologize if I would disturb you. But, I would really like to be able to install it and share my experience. After taking into account your proposals, I put the different screenshots after the orders: **docker-compose build** ![image](https://getodk.b-cdn.net/uploads/default/original/2X/2/2f3aed221572e70342ec88f4987bfc540e44479b.png) **=\> The process went well** **docker-compose up --no-start** **&** **docker-compose up -d** ![image](https://getodk.b-cdn.net/uploads/default/original/2X/2/2abd22f6ddd60a8c4e18cbe03dd46eb2df61c25b.png) =\> These 2 commands indicate that the process went well. However, I note that I do not have access to central ODK. While doing **docker-compose ps** , I notice that 2 elements (enketo\_redis\_cache and enketo\_redis\_main) only restart. Please see below the screenshot ![image](https://getodk.b-cdn.net/uploads/default/original/2X/9/9d79756f4133db2175217950ed22e85ce350909c.png) When i do this syntax > docker-compose logs I see below message ![image](https://getodk.b-cdn.net/uploads/default/original/2X/d/d8e9f2a60a463abff715f032955602dd553e8c1a.png) Best regards ---
**Author:** ![mathieubossaert](https://getodk.b-cdn.net/user_avatar/forum.getodk.org/mathieubossaert/32/6131_2.png) [@mathieubossaert](https://forum.getodk.org/u/mathieubossaert)\ **Post date:** [April 23, 2021, 4:24pm UTC](https://forum.getodk.org/t/how-to-install-odk-central-on-synology-nas-with-docker/33251/6 "2021-04-23T16:24:10Z")
Hi @dkonan you should type ```sh docker-compose logs name_of_the_container ``` ---
**Author:** ![dkonan](https://getodk.b-cdn.net/user_avatar/forum.getodk.org/dkonan/32/6009_2.png) [@dkonan](https://forum.getodk.org/u/dkonan)\ **Post date:** [May 6, 2021, 10:04pm UTC](https://forum.getodk.org/t/how-to-install-odk-central-on-synology-nas-with-docker/33251/7 "2021-05-06T22:04:44Z")
**Hi @yanokwa,** **Hi @mathieubossaert** , **Hi @shadoworker5** Many thanks for your guidance. After several attempts, failures and reading posts, I was able to install ODK Central on my Synology NAS with Docker. The key steps to follow: > **Creation of directories in the central folder** > root@xxx: / central # mkdir -p ~/central/files/dkim/config > root @xxx: / central # mkdir -p ~/central/files/dkim/rsa.private > **Creation of directory in at the root** > root@xxx: / central # mkdir -p ~/data/transfer > Changing ports in the docker-compose.yml file I followed the @jary's guidelines below: > [@ODK Central with nonstandard port number and custom SSL: Cannot retrieve forms with Collect](https://forum.getodk.org/t/odk-central-with-nonstandard-port-number-and-custom-ssl-cannot-retrieve-forms-with-collect/26264/9): > > ```auto > nginx: > container_name: nginx > build: > context: . > dockerfile: nginx.dockerfile > depends_on: > - service > environment: > - SSL_TYPE=${SSL_TYPE} > - DOMAIN=${DOMAIN} > - CERTBOT_EMAIL=${SYSADMIN_EMAIL} > ports: > - "4480:80" # on the left goes the alternative port number, on right the real port > - "4443:443" # and the same applies for https > healthcheck: > test: ["CMD-SHELL", "nc -z localhost 443 || exit 1"] > > ``` Without first modifying the .env file (nano .env) Then follow the other steps (by positioning yourself in the central directory: > 1. docker-compose build > 2. docker-compose up --no - start > 3. docker-compose up -d > 4. docker-compose ps # To make sure everything is working fine like below ![image](https://getodk.b-cdn.net/uploads/default/original/2X/5/5b58db7517f0f12c0cd0c3b9f9fddec0b4f0002f.png) > 1. Create email and password Thanks everyone. I will do a tutorial in French with @shadoworker5 for French speakers. We think it will be a good opportunity for them ---
**Author:** ![yanokwa](https://getodk.b-cdn.net/user_avatar/forum.getodk.org/yanokwa/32/1695_2.png) [@yanokwa](https://forum.getodk.org/u/yanokwa)\ **Post date:** [May 6, 2021, 10:39pm UTC](https://forum.getodk.org/t/how-to-install-odk-central-on-synology-nas-with-docker/33251/8 "2021-05-06T22:39:20Z")
Congrats on getting it to work, @dkonan! It's also very kind of you to also do a tutorial for others. When that is ready, please post it to this topic and I'll make sure to share it out more broadly. Did you get a chance to test to see if the web forms (aka Enketo) are also working? ---
**Author:** ![mathieubossaert](https://getodk.b-cdn.net/user_avatar/forum.getodk.org/mathieubossaert/32/6131_2.png) [@mathieubossaert](https://forum.getodk.org/u/mathieubossaert)\ **Post date:** [May 7, 2021, 7:42am UTC](https://forum.getodk.org/t/how-to-install-odk-central-on-synology-nas-with-docker/33251/9 "2021-05-07T07:42:13Z")
Bravo @dkonan pour la persévérance et pour le partage à venir 🙂 ---
**Author:** ![dkonan](https://getodk.b-cdn.net/user_avatar/forum.getodk.org/dkonan/32/6009_2.png) [@dkonan](https://forum.getodk.org/u/dkonan)\ **Post date:** [May 7, 2021, 10:52am UTC](https://forum.getodk.org/t/how-to-install-odk-central-on-synology-nas-with-docker/33251/10 "2021-05-07T10:52:46Z")
Merci **Mathieu** (@mathieubossaert) du soutien. Mais, je reviendrai vers vous. Car, je l'ai réussi en local. Je vais le refaire avec un nom de domaine.