I’ve set up two windows container for ASP.NET and MSSQL server. On the first docker-compose build everything works as expected. Then after I’ve made some changes (because im testing stuff) to the custom dockerfile and run docker-compose build again it uses the old container again, not making any changes.
I assumed that when i did a build it created a new container. Am i misunderstanding how docker works?
This is the docker-compose.yml
version: '3'
services:
db:
image: microsoft/mssql-server-windows-developer
environment:
sa_password: "Password1234!"
ACCEPT_EULA: "Y"
ports:
- "8003:1433"
build:
context: .
dockerfile: mssql.dockerfile
web:
build:
context: .
dockerfile: web.dockerfile
image: mcr.microsoft.com/dotnet/framework/aspnet:4.8
#volumes:
# - .:C:/inetpub/wwwroot
ports:
- "8080:80"
- "8081:431"
This is the mssql.dockerfile
# escape=`
FROM microsoft/mssql-server-windows-developer
#set shell
SHELL ["powershell.exe", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPreference = 'SilentlyContinue';"]
#make temp folder
RUN mkdir C:\temp
#copy script to temp folder
COPY DownloadDatabase.ps1 C:\temp
COPY RestoreDatabase.ps1 C:\temp
#run script to retrieve production database
WORKDIR C:\temp
RUN .\DownloadDatabase.ps1 -sourcefile <url> -destinationfile <target>
CMD .\RestoreDatabase.ps1
It is very easy to tell if the image has been re-used because the mkdir C:\temp errors out saying the directory already exists.
I’ve already tried all the options on docker compose. no-cache, force-rm