Simen Daehlin Hi I already did and double-checked it: my .env (I omit the other values): HOST=0.0.0.0 PORT=1337 URL='https://sub.domain.de' and in my config/server.js: module.exports = ({ env }) => ({ host: env('HOST', '0.0.0.0'), port: env.int('PORT', 1337), url : env('URL', 'https://sub.domain.de'), app: { keys: env.array('APP_KEYS'), }, }); I still get those 2 entries with the "wrong" localhost url and the API error. Can't create my admin user..

I saw this on the network tab in the browser: and I am using Strapi behind a reverse proxy (traefik) with TLS/SSL. All other network calls are correct and return status codes 20x. Only these two are resolving to localhost:1337 which can't be correct..

Instead of node:16 I used node:14 and also I am using npm not yarn. I am using this Dockerfile (which is just a bit different from yours): FROM node:14 # Installing libvips-dev for sharp compatability RUN apt-get update && apt-get install -y libvips-dev ARG NODE_ENV=development ENV NODE_ENV=${NODE_ENV} WORKDIR /opt/ COPY ./package.json ./ COPY ./package-lock.json ./ ENV PATH /opt/node_modules/.bin:$PATH RUN npm install WORKDIR /opt/app COPY ./ . RUN npm build EXPOSE 1337 CMD ["npm", "run", "develop"] I added knex and pg as dev dependencies: npm install pg knex --save-dev Then I built my image like you did and spinned up the containers using docker-compose up -d. Everything is working fine for now and I see the "Create First Administrator" view. But if I click on that button I get a spinning icon and the error message "Warning: An error occurred while requesting the API" - nothing more. The logs show nothing unusual: postgresDB | 2022-03-21 19:56:28.879 UTC [1] LOG: starting PostgreSQL 12.0 on x86_64-pc-linux-musl, compiled by gcc (Alpine 8.3.0) 8.3.0, 64-bit postgresDB | 2022-03-21 19:56:28.879 UTC [1] LOG: listening on IPv4 address "0.0.0.0", port 5432 postgresDB | 2022-03-21 19:56:28.879 UTC [1] LOG: listening on IPv6 address "::", port 5432 postgresDB | 2022-03-21 19:56:28.883 UTC [1] LOG: listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432" postgresDB | 2022-03-21 19:56:28.895 UTC [21] LOG: database system was shut down at 2022-03-21 19:56:22 UTC postgresDB | 2022-03-21 19:56:28.900 UTC [1] LOG: database system is ready to accept connections strapi | strapi | > strapi-playground@0.1.0 develop /opt/app strapi | > strapi develop strapi | strapi | Building your admin UI with development configuration ... strapi | Admin UI built successfully strapi | strapi | Project information strapi | strapi | ┌──────────────────────────────────────────────────────────────────────── strapi | │ Time │ Mon Mar 21 2022 19:56:33 GMT+0000 (Coordinated … │ strapi | │ Launched in │ 799 ms │ strapi | │ Environment │ development │ strapi | │ Process PID │ 34 │ strapi | │ Version │ 4.1.5 (node v14.19.1) │ strapi | │ Edition │ Community │ strapi | └──────────────────────────────────────────────────────────────────────── strapi | strapi | Actions available strapi | strapi | One more thing... strapi | Create your first administrator 💻 by going to the administration panel at: strapi | strapi | ┌────────────────────────────── strapi | │ http://localhost:1337/admin │ strapi | └────────────────────────────── strapi | strapi | [2022-03-21 19:56:34.039] http: GET index.html (19 ms) 200 strapi | [2022-03-21 19:56:34.130] http: GET /assets/images/logo_login.png (12 ms) 200 strapi | [2022-03-21 19:56:34.133] http: GET /assets/images/group_people_1.png (8 ms) 200 strapi | [2022-03-21 19:56:34.134] http: GET /assets/images/group_people_3.png (6 ms) 200 strapi | [2022-03-21 19:56:34.134] http: GET /assets/images/group_people_2.png (5 ms) 200 strapi | [2022-03-21 19:56:34.407] http: GET /favicon.ico (0 ms) 200 strapi | [2022-03-21 19:56:35.169] http: GET index.html (4 ms) 200 strapi | [2022-03-21 19:56:35.238] http: GET /assets/images/logo_login.png (2 ms) 200 strapi | [2022-03-21 19:56:35.247] http: GET /assets/images/group_people_1.png (4 ms) 200 strapi | [2022-03-21 19:56:35.247] http: GET /assets/images/group_people_2.png (3 ms) 200 strapi | [2022-03-21 19:56:35.248] http: GET /assets/images/group_people_3.png (3 ms) 200 strapi | [2022-03-21 19:56:35.514] http: GET /favicon.ico (0 ms) 200 strapi | [2022-03-21 19:56:36.048] http: GET index.html (4 ms) 200 strapi | [2022-03-21 19:56:36.117] http: GET /assets/images/group_people_1.png (4 ms) 200 strapi | [2022-03-21 19:56:36.117] http: GET /assets/images/logo_login.png (2 ms) 200 strapi | [2022-03-21 19:56:36.122] http: GET /assets/images/group_people_2.png (2 ms) 200 strapi | [2022-03-21 19:56:36.130] http: GET /assets/images/group_people_3.png (2 ms) 200 strapi | [2022-03-21 19:56:36.326] http: GET index.html (3 ms) 200 strapi | [2022-03-21 19:56:36.526] http: GET index.html (3 ms) 200 strapi | [2022-03-21 19:56:36.698] http: GET index.html (4 ms) 200 strapi | [2022-03-21 19:56:36.878] http: GET index.html (3 ms) 200 strapi | [2022-03-21 19:56:37.048] http: GET index.html (3 ms) 200 strapi | [2022-03-21 19:56:37.417] http: GET index.html (3 ms) 200 strapi | [2022-03-21 19:56:37.597] http: GET index.html (4 ms) 200 strapi | [2022-03-21 19:56:37.778] http: GET index.html (4 ms) 200 strapi | [2022-03-21 19:56:37.946] http: GET index.html (3 ms) 200 strapi | [2022-03-21 19:56:38.139] http: GET index.html (4 ms) 200 strapi | [2022-03-21 19:56:38.208] http: GET /assets/images/group_people_2.png (5 ms) 200 strapi | [2022-03-21 19:56:38.209] http: GET /assets/images/group_people_3.png (5 ms) 200 strapi | [2022-03-21 19:56:38.210] http: GET /assets/images/group_people_1.png (3 ms) 200 strapi | [2022-03-21 19:56:38.210] http: GET /assets/images/logo_login.png (3 ms) 200 strapi | [2022-03-21 19:56:38.473] http: GET /favicon.ico (0 ms) 200 strapi | [2022-03-21 19:56:50.981] http: GET /admin (3 ms) 200 strapi | [2022-03-21 19:56:55.216] http: GET /admin (2 ms) 200 strapi | [2022-03-21 19:56:55.275] http: GET /admin/main.25a14c1f.js (2 ms) 200 strapi | [2022-03-21 19:56:55.276] http: GET /admin/runtime~main.385dfcf4.js (2 ms) 200 strapi | [2022-03-21 19:56:56.618] http: GET /admin/1856.a30bd09b.chunk.js (2 ms) 200 strapi | [2022-03-21 19:56:56.628] http: GET /admin/497.3fcf6196.chunk.js (4 ms) 200 strapi | [2022-03-21 19:56:56.628] http: GET /admin/1454.f065d92a.chunk.js (3 ms) 200 strapi | [2022-03-21 19:56:56.629] http: GET /admin/4362.cf5b578d.chunk.js (2 ms) 200 strapi | [2022-03-21 19:56:56.760] http: GET /favicon.ico (0 ms) 200 strapi | [2022-03-21 19:56:56.777] http: GET /admin/fontawesome-css.36cff9ae.chunk.js (1 ms) 200 strapi | [2022-03-21 19:56:56.784] http: GET /admin/en-json.2bc27a3d.chunk.js (1 ms) 200 strapi | [2022-03-21 19:56:56.785] http: GET /admin/fr-json.a9ce0700.chunk.js (1 ms) 200 strapi | [2022-03-21 19:56:56.854] http: GET /admin/email-translation-en-json.fa0dc92b.chunk.js (5 ms) 200 strapi | [2022-03-21 19:56:56.855] http: GET /admin/content-type-builder-translation-fr-json.bee621f7.chunk.js (3 ms) 200 strapi | [2022-03-21 19:56:56.855] http: GET /admin/fontawesome-css-all.3b89f909.chunk.js (4 ms) 200 strapi | [2022-03-21 19:56:56.856] http: GET /admin/content-type-builder-translation-en-json.8034dab6.chunk.js (3 ms) 200 strapi | [2022-03-21 19:56:56.859] http: GET /admin/email-translation-fr-json.49c3c888.chunk.js (2 ms) 200 strapi | [2022-03-21 19:56:56.876] http: GET /admin/i18n-translation-en-json.4d823f62.chunk.js (14 ms) 200 strapi | [2022-03-21 19:56:56.876] http: GET /admin/upload-translation-en-json.c334dd82.chunk.js (13 ms) 200 strapi | [2022-03-21 19:56:56.877] http: GET /admin/upload-translation-fr-json.1bec79ec.chunk.js (13 ms) 200 strapi | [2022-03-21 19:56:56.877] http: GET /admin/i18n-translation-fr-json.c6367bc9.chunk.js (13 ms) 200 strapi | [2022-03-21 19:56:56.877] http: GET /admin/users-permissions-translation-en-json.21b0fd2f.chunk.js (12 ms) 200 strapi | [2022-03-21 19:56:56.879] http: GET /admin/users-permissions-translation-fr-json.a2172545.chunk.js (4 ms) 200 strapi | [2022-03-21 19:56:56.944] http: GET /admin/fontawesome-js.2639263c.chunk.js (2 ms) 200 strapi | [2022-03-21 19:56:57.162] http: GET /admin/b997a22a2e0b87ef1fa2.ico (1 ms) 200 strapi | [2022-03-21 19:56:57.427] http: GET /admin/cropper-css.ace19575.chunk.js (2 ms) 200 strapi | [2022-03-21 19:57:00.538] http: GET /admin (2 ms) 200 strapi | [2022-03-21 19:57:00.597] http: GET /admin/runtime~main.385dfcf4.js (1 ms) 200 strapi | [2022-03-21 19:57:00.604] http: GET /admin/main.25a14c1f.js (1 ms) 200 strapi | [2022-03-21 19:57:01.902] http: GET /favicon.ico (0 ms) 200 strapi | [2022-03-21 19:57:02.817] http: GET /admin/1856.a30bd09b.chunk.js (1 ms) 200 strapi | [2022-03-21 19:57:02.828] http: GET /admin/497.3fcf6196.chunk.js (4 ms) 200 strapi | [2022-03-21 19:57:02.829] http: GET /admin/1454.f065d92a.chunk.js (4 ms) 200 strapi | [2022-03-21 19:57:02.830] http: GET /admin/4362.cf5b578d.chunk.js (3 ms) 200 strapi | [2022-03-21 19:57:03.102] http: GET /admin/fontawesome-css.36cff9ae.chunk.js (1 ms) 200 strapi | [2022-03-21 19:57:03.109] http: GET /admin/fr-json.a9ce0700.chunk.js (4 ms) 200 strapi | [2022-03-21 19:57:03.110] http: GET /admin/en-json.2bc27a3d.chunk.js (3 ms) 200 strapi | [2022-03-21 19:57:03.240] http: GET /admin/fontawesome-css-all.3b89f909.chunk.js (1 ms) 200 strapi | [2022-03-21 19:57:03.367] http: GET /admin/content-type-builder-translation-en-json.8034dab6.chunk.js (5 ms) 200 strapi | [2022-03-21 19:57:03.367] http: GET /admin/content-type-builder-translation-fr-json.bee621f7.chunk.js (4 ms) 200 strapi | [2022-03-21 19:57:03.368] http: GET /admin/upload-translation-fr-json.1bec79ec.chunk.js (4 ms) 200 strapi | [2022-03-21 19:57:03.372] http: GET /admin/i18n-translation-en-json.4d823f62.chunk.js (6 ms) 200 strapi | [2022-03-21 19:57:03.375] http: GET /admin/email-translation-en-json.fa0dc92b.chunk.js (6 ms) 200 strapi | [2022-03-21 19:57:03.377] http: GET /admin/email-translation-fr-json.49c3c888.chunk.js (6 ms) 200 strapi | [2022-03-21 19:57:03.380] http: GET /admin/i18n-translation-fr-json.c6367bc9.chunk.js (7 ms) 200 strapi | [2022-03-21 19:57:03.383] http: GET /admin/upload-translation-en-json.c334dd82.chunk.js (7 ms) 200 strapi | [2022-03-21 19:57:03.384] http: GET /admin/users-permissions-translation-en-json.21b0fd2f.chunk.js (6 ms) 200 strapi | [2022-03-21 19:57:03.384] http: GET /admin/users-permissions-translation-fr-json.a2172545.chunk.js (2 ms) 200 strapi | [2022-03-21 19:57:03.429] http: GET /admin/fontawesome-js.2639263c.chunk.js (1 ms) 200 strapi | [2022-03-21 19:57:03.819] http: GET /admin/b997a22a2e0b87ef1fa2.ico (1 ms) 200 strapi | [2022-03-21 19:57:04.929] http: GET /admin/cropper-css.ace19575.chunk.js (2 ms) 200 strapi | [2022-03-21 20:01:19.848] http: GET /admin (2 ms) 200 strapi | [2022-03-21 20:01:19.907] http: GET /admin/runtime~main.385dfcf4.js (1 ms) 200 strapi | [2022-03-21 20:01:19.914] http: GET /admin/main.25a14c1f.js (1 ms) 200 strapi | [2022-03-21 20:01:21.146] http: GET /favicon.ico (0 ms) 200 strapi | [2022-03-21 20:01:21.945] http: GET /admin/1856.a30bd09b.chunk.js (1 ms) 200 strapi | [2022-03-21 20:01:21.952] http: GET /admin/497.3fcf6196.chunk.js (2 ms) 200 strapi | [2022-03-21 20:01:21.953] http: GET /admin/1454.f065d92a.chunk.js (2 ms) 200 strapi | [2022-03-21 20:01:21.953] http: GET /admin/4362.cf5b578d.chunk.js (1 ms) 200 strapi | [2022-03-21 20:01:22.437] http: GET /admin/fontawesome-css.36cff9ae.chunk.js (1 ms) 200 strapi | [2022-03-21 20:01:22.443] http: GET /admin/fr-json.a9ce0700.chunk.js (1 ms) 200 strapi | [2022-03-21 20:01:22.444] http: GET /admin/en-json.2bc27a3d.chunk.js (2 ms) 200 strapi | [2022-03-21 20:01:22.518] http: GET /admin/fontawesome-css-all.3b89f909.chunk.js (1 ms) 200 strapi | [2022-03-21 20:01:22.595] http: GET /admin/content-type-builder-translation-en-json.8034dab6.chunk.js (1 ms) 200 strapi | [2022-03-21 20:01:22.614] http: GET /admin/email-translation-en-json.fa0dc92b.chunk.js (5 ms) 200 strapi | [2022-03-21 20:01:22.615] http: GET /admin/content-type-builder-translation-fr-json.bee621f7.chunk.js (5 ms) 200 strapi | [2022-03-21 20:01:22.615] http: GET /admin/email-translation-fr-json.49c3c888.chunk.js (4 ms) 200 strapi | [2022-03-21 20:01:22.619] http: GET /admin/i18n-translation-en-json.4d823f62.chunk.js (6 ms) 200 strapi | [2022-03-21 20:01:22.621] http: GET /admin/users-permissions-translation-en-json.21b0fd2f.chunk.js (5 ms) 200 strapi | [2022-03-21 20:01:22.622] http: GET /admin/users-permissions-translation-fr-json.a2172545.chunk.js (5 ms) 200 strapi | [2022-03-21 20:01:22.626] http: GET /admin/upload-translation-en-json.c334dd82.chunk.js (6 ms) 200 strapi | [2022-03-21 20:01:22.627] http: GET /admin/i18n-translation-fr-json.c6367bc9.chunk.js (5 ms) 200 strapi | [2022-03-21 20:01:22.628] http: GET /admin/upload-translation-fr-json.1bec79ec.chunk.js (3 ms) 200 strapi | [2022-03-21 20:01:22.665] http: GET /admin/fontawesome-js.2639263c.chunk.js (1 ms) 200 strapi | [2022-03-21 20:01:22.988] http: GET /admin/b997a22a2e0b87ef1fa2.ico (1 ms) 200 strapi | [2022-03-21 20:01:23.457] http: GET /admin/cropper-css.ace19575.chunk.js (1 ms) 200 strapi | [2022-03-21 20:01:30.351] http: GET /admin (2 ms) 200 strapi | [2022-03-21 20:01:30.416] http: GET /admin/runtime~main.385dfcf4.js (2 ms) 200 strapi | [2022-03-21 20:01:30.416] http: GET /admin/main.25a14c1f.js (1 ms) 200 strapi | [2022-03-21 20:01:31.778] http: GET /favicon.ico (0 ms) 200 strapi | [2022-03-21 20:01:32.246] http: GET /admin/1856.a30bd09b.chunk.js (1 ms) 200 strapi | [2022-03-21 20:01:32.257] http: GET /admin/4362.cf5b578d.chunk.js (5 ms) 200 strapi | [2022-03-21 20:01:32.258] http: GET /admin/497.3fcf6196.chunk.js (5 ms) 200 strapi | [2022-03-21 20:01:32.259] http: GET /admin/1454.f065d92a.chunk.js (3 ms) 200 strapi | [2022-03-21 20:01:32.426] http: GET /admin/fontawesome-css.36cff9ae.chunk.js (1 ms) 200 strapi | [2022-03-21 20:01:32.434] http: GET /admin/en-json.2bc27a3d.chunk.js (2 ms) 200 strapi | [2022-03-21 20:01:32.434] http: GET /admin/fr-json.a9ce0700.chunk.js (1 ms) 200 strapi | [2022-03-21 20:01:32.504] http: GET /admin/fontawesome-css-all.3b89f909.chunk.js (2 ms) 200 strapi | [2022-03-21 20:01:32.527] http: GET /admin/content-type-builder-translation-en-json.8034dab6.chunk.js (1 ms) 200 strapi | [2022-03-21 20:01:32.536] http: GET /admin/content-type-builder-translation-fr-json.bee621f7.chunk.js (4 ms) 200 strapi | [2022-03-21 20:01:32.536] http: GET /admin/email-translation-en-json.fa0dc92b.chunk.js (3 ms) 200 strapi | [2022-03-21 20:01:32.537] http: GET /admin/email-translation-fr-json.49c3c888.chunk.js (3 ms) 200 strapi | [2022-03-21 20:01:32.539] http: GET /admin/upload-translation-fr-json.1bec79ec.chunk.js (4 ms) 200 strapi | [2022-03-21 20:01:32.544] http: GET /admin/users-permissions-translation-en-json.21b0fd2f.chunk.js (6 ms) 200 strapi | [2022-03-21 20:01:32.548] http: GET /admin/i18n-translation-fr-json.c6367bc9.chunk.js (7 ms) 200 strapi | [2022-03-21 20:01:32.550] http: GET /admin/users-permissions-translation-fr-json.a2172545.chunk.js (3 ms) 200 strapi | [2022-03-21 20:01:32.552] http: GET /admin/upload-translation-en-json.c334dd82.chunk.js (3 ms) 200 strapi | [2022-03-21 20:01:32.553] http: GET /admin/i18n-translation-en-json.4d823f62.chunk.js (2 ms) 200 strapi | [2022-03-21 20:01:32.580] http: GET /admin/fontawesome-js.2639263c.chunk.js (1 ms) 200 strapi | [2022-03-21 20:01:32.854] http: GET /admin/b997a22a2e0b87ef1fa2.ico (2 ms) 200 strapi | [2022-03-21 20:01:33.196] http: GET /admin/cropper-css.ace19575.chunk.js (1 ms) 200 Do you know what could cause the problem?

I needed to change the Dockerfile a bit (adding -y): RUN apt-get update && apt-get install -y libvips-dev and also yarn.lock was not found so I commented it out. But now I get more errors running the docker-compose up -d: strapi | yarn run v1.22.17 strapi | $ strapi develop strapi | Knex: run strapi | $ npm install pg --save strapi | Cannot find module 'pg' strapi | Require stack: strapi | - /opt/node_modules/knex/lib/dialects/postgres/index.js strapi | - /opt/node_modules/knex/lib/knex-builder/internal/config-resolver.js strapi | - /opt/node_modules/knex/lib/knex-builder/Knex.js strapi | - /opt/node_modules/knex/lib/index.js strapi | - /opt/node_modules/knex/knex.js strapi | - /opt/node_modules/@strapi/database/lib/index.js strapi | - /opt/node_modules/@strapi/strapi/lib/Strapi.js strapi | - /opt/node_modules/@strapi/strapi/lib/index.js strapi | - /opt/node_modules/@strapi/strapi/lib/commands/develop.js strapi | - /opt/node_modules/@strapi/strapi/bin/strapi.js