[gimp/barthalion/kaniko-set-container] gitlab-ci: Set container explicitly to docker

[Bartłomiej Piotrowski <bpiotrowski src gnome org>]

commit a86040b1761b3fdd2c58d78c2981d79f839ea7dc
Author: Bartłomiej Piotrowski <bpiotrowski gnome org>
Date:   Fri Apr 1 14:43:33 2022 +0200

    gitlab-ci: Set container explicitly to docker
    
    Since the latest release of Kaniko, it fails to detect the container
    runtime it runs within.

 .gitlab-ci.yml | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a240a5d7ad..a3e0b61ad4 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -67,6 +67,7 @@ build-image:
     name: gcr.io/kaniko-project/executor:debug
     entrypoint: [""]
   script:
+    - export container=docker
     - mkdir -p /kaniko/.docker
     - echo 
"{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" 
> /kaniko/.docker/config.json
     - echo "FROM debian:testing" > Dockerfile
@@ -94,6 +95,7 @@ build-image-win64:
     name: gcr.io/kaniko-project/executor:debug
     entrypoint: [""]
   script:
+    - export container=docker
     - mkdir -p /kaniko/.docker
     - echo 
"{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" 
> /kaniko/.docker/config.json
     - echo "FROM debian:testing" > Dockerfile
@@ -116,6 +118,7 @@ build-image-win32:
     name: gcr.io/kaniko-project/executor:debug
     entrypoint: [""]
   script:
+    - export container=docker
     - mkdir -p /kaniko/.docker
     - echo 
"{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" 
> /kaniko/.docker/config.json
     - echo "FROM debian:testing" > Dockerfile