diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index eb5bda1..7815c31 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -175,6 +175,21 @@ jobs:
         uses: actions/download-artifact@v2
         with:
           name: poseidon
+      - name: Get current branch name
+        id: branch-name
+        uses: tj-actions/branch-names@v6
+      - name: Checkout matching branch for Dockerfiles (optional)
+        id: checkout-dockerfiles
+        if: steps.branch-name.outputs.is_default == 'false'
+        uses: actions/checkout@v3
+        continue-on-error: true
+        with:
+          repository: openHPI/dockerfiles
+          path: deploy/dockerfiles
+          ref: ${{ steps.branch-name.outputs.current_branch }}
+      - name: Build new e2e test image (optional)
+        if: steps.checkout-dockerfiles.outcome == 'success'
+        run: make e2e-test-docker-image
       - name: Run e2e tests
         run: |
           sudo ./nomad agent -dev -log-level=WARN -config e2e-config.hcl &
diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index 31bcd22..e2a4d23 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -51,16 +51,3 @@ jobs:
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
-      - name: Extract metadata (tags, labels) for Docker e2e image
-        id: e2e-meta
-        uses: docker/metadata-action@v3
-        with:
-          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-e2e-tests
-      - name: Build and push e2e Docker image
-        uses: docker/build-push-action@v2
-        with:
-          context: .
-          file: deploy/e2e-test-image/Dockerfile
-          push: true
-          tags: ${{ steps.e2e-meta.outputs.tags }}
-          labels: ${{ steps.e2e-meta.outputs.labels }}
diff --git a/.gitignore b/.gitignore
index 7939883..0f2bb3c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,6 @@ tests/e2e/configuration.yaml
 # IDE files
 /.idea
 *.iml
+
+# Dockerfiles repository
+deploy/dockerfiles
diff --git a/Makefile b/Makefile
index f9115dd..9dfc525 100644
--- a/Makefile
+++ b/Makefile
@@ -3,13 +3,14 @@ REPOSITORY_OWNER = "openHPI"
 PKG := "github.com/$(REPOSITORY_OWNER)/$(PROJECT_NAME)/cmd/$(PROJECT_NAME)"
 UNIT_TESTS = $(shell go list ./... | grep -v /e2e)
 
-DOCKER_E2E_CONTAINER_NAME := "$(PROJECT_NAME)-e2e-tests"
 DOCKER_TAG := "poseidon:latest"
 DOCKER_OPTS := -v $(shell pwd)/configuration.yaml:/configuration.yaml
 LOWER_REPOSITORY_OWNER = $(shell echo $(REPOSITORY_OWNER) | tr A-Z a-z)
-REGISTRY = "ghcr.io"
-TAG = ":main"
-E2E_TEST_DOCKER_IMAGE = "$(REGISTRY)/$(LOWER_REPOSITORY_OWNER)/$(DOCKER_E2E_CONTAINER_NAME)$(TAG)"
+
+# Define image to be used in e2e tests. Requires `make` to be available.
+E2E_TEST_DOCKER_CONTAINER := co_execenv_java
+E2E_TEST_DOCKER_TAG := 17
+E2E_TEST_DOCKER_IMAGE = "$(LOWER_REPOSITORY_OWNER)/$(E2E_TEST_DOCKER_CONTAINER):$(E2E_TEST_DOCKER_TAG)"
 
 default: help
 
@@ -92,24 +93,27 @@ coverage: deps ## Generate code coverage report
 coverhtml: coverage ## Generate HTML coverage report
 	@go tool cover -html=coverage_cleaned.cov -o coverage_unit.html
 
-.PHONY: e2e-test-docker-image ## Build Docker image that is pushed to a registry and used in e2e tests
-e2e-test-docker-image: deploy/e2e-test-image/Dockerfile
-	@docker build -t $(E2E_TEST_DOCKER_IMAGE) deploy/e2e-test-image
+deploy/dockerfiles: ## Clone Dockerfiles repository
+	@git clone git@github.com:$(REPOSITORY_OWNER)/dockerfiles.git deploy/dockerfiles
+
+.PHONY: e2e-test-docker-image
+e2e-test-docker-image: deploy/dockerfiles ## Build Docker image that is pushed to a registry and used in e2e tests
+	@docker build -t $(E2E_TEST_DOCKER_IMAGE) deploy/dockerfiles/$(E2E_TEST_DOCKER_CONTAINER)/$(E2E_TEST_DOCKER_TAG)
 
 .PHONY: e2e-test
 e2e-test: deps ## Run e2e tests
-	@docker pull $(E2E_TEST_DOCKER_IMAGE)
+	@[ -z "$(docker images -q $(E2E_TEST_DOCKER_IMAGE))" ] || docker pull $(E2E_TEST_DOCKER_IMAGE)
 	@go test -count=1 ./tests/e2e -v -args -dockerImage="$(E2E_TEST_DOCKER_IMAGE)"
 
 .PHONY: e2e-docker
 e2e-docker: docker ## Run e2e tests against the Docker container
 	docker run --rm -p 127.0.0.1:7200:7200 \
-       --name $(DOCKER_E2E_CONTAINER_NAME) \
+       --name $(E2E_TEST_DOCKER_CONTAINER) \
        -e POSEIDON_SERVER_ADDRESS=0.0.0.0 \
        $(DOCKER_OPTS) \
        $(DOCKER_TAG) &
 	@timeout 30s bash -c "until curl -s -o /dev/null http://127.0.0.1:7200/; do sleep 0.1; done"
-	@make e2e-test || EXIT=$$?; docker stop $(DOCKER_E2E_CONTAINER_NAME); exit $$EXIT
+	@make e2e-test || EXIT=$$?; docker stop $(E2E_TEST_DOCKER_CONTAINER); exit $$EXIT
 
 # See https://aquasecurity.github.io/trivy/v0.18.1/integrations/gitlab-ci/
 TRIVY_VERSION = $(shell wget -qO - "https://api.github.com/repos/aquasecurity/trivy/releases/latest" | grep '"tag_name":' | sed -E 's/.*"v([^"]+)".*/\1/')
diff --git a/deploy/e2e-test-image/Dockerfile b/deploy/e2e-test-image/Dockerfile
deleted file mode 100644
index 03a9d2e..0000000
--- a/deploy/e2e-test-image/Dockerfile
+++ /dev/null
@@ -1,9 +0,0 @@
-# Minimal working Docker image used in our e2e tests
-FROM python:latest
-
-RUN useradd --home-dir /workspace --no-create-home --user-group user && \
-    mkdir /workspace && chown user:user /workspace
-
-WORKDIR /workspace
-
-USER user