restoring database from dockerfile - docker

Question

I'm trying to restore database from dockerfile, I'm dockerizing api and database, when I run docker-compose up --build I got error
how can I fix this, I'm sending dockerfile and docker-compose.yaml below, If anyone has some idea how to load database please tell me, any help will be welcome. Kind regards and thank you all
DOCKERFILE
FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base
WORKDIR /app
EXPOSE 5192
ENV ASPNETCORE_URLS=http://+:5192
FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
WORKDIR /src
COPY . .
FROM build AS publish
RUN dotnet publish "e-Res/e-Res.csproj" -c Release -o /app
FROM base AS final
WORKDIR /app
COPY --from=publish /app .
COPY ./e-Res/Uploads/Images ./Uploads/Images
COPY ["e-Res/ERes.bak", "var/opt/mssql/data"]
RUN (/opt/mssql/bin/sqlservr --accept-eula & ) | grep -q "Starting database restore" && /opt/mssql-tools/bin/sqlcmd -S localhost -U sa -P 'QWElkj132!' -Q "RESTORE FILELISTONLY FROM DISK='/var/opt/mssql/data/ERes.bak';"
DOCKER-COMPOSE.YAML
version: '3'
services:
#mssql docker
eres-sql:
image: mcr.microsoft.com/mssql/server:2017-latest-ubuntu
restart: unless-stopped
environment:
- ACCEPT_EULA=Y
- SA_PASSWORD=QWElkj132!
- MSSQL_PID=Developer
ports:
- 1401:1433
expose:
- 1433
networks:
- eresnet2022
eres-api:
restart: unless-stopped
build:
context: .
environment:
- ConnectionStrings:DefaultConnection=Server=eres-sql,1433;Database=eres;User=sa;Password=QWElkj132!;ConnectRetryCount=0
- ASPNETCORE_ENVIRONMENT=Development
ports:
- 5192:5192
networks:
- eresnet2022
links:
- eres-sql
depends_on:
- eres-sql
networks:
eresnet2022:
driver: bridge
ENTRYPOINT ["dotnet", "e-Res.dll"]

Answer 1

You cannot create the Db when building the image but you have to wait until the container has started.
You need to create another SQL Server container with a custom startup, or execute the restore command after the container has started
FROM mcr.microsoft.com/mssql/server:2017-latest-ubuntu
# You can also pass them from docker-compose file
EXPOSE 1433
ENV ACCEPT_EULA y
ENV SA_PASSWORD QWElkj132!
#
COPY ["e-Res/ERes.bak", "var/opt/mssql/data"]
# Init scripts
COPY ./init.sql .
COPY ./entrypoint.sh .
CMD /bin/bash ./entrypoint.sh
On the init.sql you have the Db restore command
RESTORE FILELISTONLY FROM DISK='/var/opt/mssql/data/ERes.bak';
On the entrypoint.sh you have the boot point
#!/bin/bash
# Start the init.sql script (you can also put your command here and remove the init.sql file)
# -l 50 means wait 50 seconds before the timeout (you can adjust this value) this is the time necessary to SQL server to startup (see below)
/opt/mssql-tools/bin/sqlcmd -S localhost -l 50 -U SA -P "QWElkj132!" -i init.sql &
# Start SQL server
/opt/mssql/bin/sqlservr
Remove the last two rows from the Dockerfile
COPY ["e-Res/ERes.bak", "var/opt/mssql/data"]
RUN (/opt/mssql/bin/sqlservr --accept-eula & ) | grep -q "Starting database restore" && /opt/mssql-tools/bin/sqlcmd -S localhost -U sa -P 'QWElkj132!' -Q "RESTORE FILELISTONLY FROM DISK='/var/opt/mssql/data/ERes.bak';"