Running in Docker | ASP.NET Core 2.2 REST API Tutorial 14

[@babri1402]

Very nice, things are explained very clearly. A video about EF Core migrations & running them on a database inside a container would be sweet. So that when we run docker-compose, the required db is initialized & migrations executed.

[@ades3967]

Very pragmatic example! Great explanations as you're typing. Thank you

[@Lazzarus7]

Thanks, great explanation, simple and clear and in a short video

[@renatorcribeiro]

Seus videos são muito bons. Aprendo muito com eles. Obrigado por compartilhar seus conhecimentos. Sou do Brasil.

[@jeremygraham7786]

Hey mate, thanks for the great series, enjoying it lots. I came across an issue at this section which I would appreciated your thoughts on. Basically when I spun up the api and sql db with docker-compose, it wasn't applying the migrations to the sql database and therefore wasn't creating a database when running in the container. To fix, I had to force migrations when the api was built in order for it to work... Do you know why I had to force migrations while yours seems to do it automatically...?

[@florianrefardt245]

I had the exact same issue. The API was running but the database was not ready because the migration is not executed. I found this solution here to work around it: codebuckets.com/2020/08/14/applying-entity-framework-migrations-to-a-docker-container/

[@swaroopshivanna3025]

May be because @nick had written bunch of code in Program.cs to apply migration as the application starts (in his earlier video) and you might not have done that. I am just guessing though I could be totally wrong.

[@diale13]

Works great with postman but i cant see swagger on the browser, any ideas why? I mean i use the same url (without swagger/index.html) and postman works so docker is ok, no idea why

[@fedemartinez98]

The same is happening to me, please help!

[@diale13]

Fixed it: added this line to docker compose as swagger needs to be running in env. environment: - ASPNETCORE_ENVIRONMENT=Development Great video as allways nick

[@fedemartinez98]

@@diale13 Thanks man! The day I get my engineer degree I will remember you!

[@naveensemwall]

Every thing works fine but not able to browse the hosted api URL in the browser. Like while browsing localhost:9006/api/v1/posts , browser is showing >> This site can’t be reached. I have mapped 9006:80 in docker-compose file. I am using Windows 10 Pro and Docker desktop community edition. Do i need to do some kind of mapping anywhere for this ?

[@mguollo1]

Can't work here, same issue. My browser dont acess localhost:7000. Did you find a solution?

[@joepadz2001]

very helpful thanks bro.

[@sakshock]

Great video ! Thanks!

[@psdeep2]

Thanks for the tutorial. There is warning that data will be lost when we destroy the container. Is there any way to fix data persistent problem?

[@JanithWidarshana]

How about if we need to have basic data to insert. Is it possible to do via docker compose ?

[@luizmedina5719]

Hi how implement https in dockercompose ?

[@shironii997]

hi nick, great video, i have a little question about the dockerfile in case that the api to run in docker depends of multiple custom libraries, how must i to implement the dockerfile in that case?

[@nickchapsas]

Hey, can you please elaborate on what you mean by "custom libraries"? Isn't that something living in nuget?

[@MarcoLeite]

@@nickchapsas I have teh same isso. My solution has a main project with 2 dependent class libraries

[@acousticbrothers1491]

@@nickchapsas I think he is asking if you have a "N-Layer" Architecture

[@dinand6410]

Thank you Nick all very helpfull. Only this one did not do the job. Not even with your demoproject. (btw is it possible, next time to have democode per lesson. Now one mistake knocks my code out of all future lessons.) Keep it on, I will stay to enjoy it.

[@oguzhan1191]

Hi, did you create the database or docker.yml created the database?

[@nickchapsas]

The application itself created the database. The Program.cs contains a migration executer

[@17madjoker47]

Thanks a lot, very usefull video =)

[@kalaiselvank7643]

hi ,ERROR: Service 'main-api' failed to build: COPY failed: stat /mnt/sda1/var/lib/docker/tmp/docker-builder252996948/Tweetbook.csproj: no such file or directory i am getting this error any usggestion

[@annagulina5954]

ERROR: Service 'main-api' failed to build: image operating system "windows" cannot be used on this platform What can I do? thank you

[@nickchapsas]

This happens because you need to switch your docker configuration to be on Linux containers.

[@joseantoniosanchesgarcia9220]

i don't undertand this part "server=localhost,1400...etc" what is 1400, a port or what?

[@nickchapsas]

Yeah that's a port

[@joseantoniosanchesgarcia9220]

@@nickchapsas is it any port?, thanks for your answer

[@joseantoniosanchesgarcia9220]

@@nickchapsas i got this error, An error occurred using the connection to database 'PlazaCoreMiddle' on server 'DESKTOP-8TUFUVF'. fail: Microsoft.EntityFrameworkCore.Query[10100] An exception occurred while iterating over the results of a query for context type 'PlazaCoreMiddleBack.Data.ApplicationDbContext'. Microsoft.Data.SqlClient.SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections.

[@허재영-u8j]

i wana sample source