terraform-docker-custom-project

# Pull the base terraform execution environment image from the Azure container registry.

FROM iacrepo.azurecr.io/terraform-exec-env
# setup argument which is used to pass and customise Terraform execution command

ARG terraform_cmd
# make folder where source code will be injected into

RUN mkdir -p /home/repo/

# set the working directly to this location
WORKDIR "/home/repo/"

# inject source code into container during build
COPY ./ /home/repo/ 
# initialise Terraform using a remote backend.
# Azure connection details for test subscription are stored in uat.tfvars

RUN /go/terraform-bundle/terraform init -backend-config uat.tfvars && \
    /go/terraform-bundle/terraform validate
# set container to automatically run terraform when the container is run

ENTRYPOINT [ "/go/terraform-bundle/terraform"]
# allow custom arguments to be passed to terraform such as plan or apply
CMD [$terraform_cmd]