Use per build venv

Create venv inside the ramen checkout directory to have fresh venv for
every build.

Since drenv is not installed on the runner, we need to enter the venv in
any step script. I hope we can find a way to enter the venv once for the
entire job, but this is good enough for now.

Signed-off-by: Nir Soffer <nsoffer@redhat.com>

.github/workflows/e2e.yaml

@@ -24,20 +24,22 @@ jobs:
     - name: Checkout Repo
       uses: actions/checkout@v4
 
-    - name: Install drenv
-      run: pip install -e test
+    - name: Create virtual environment
+      run: |
+        hack/make-venv .venv
 
     - name: Setup drenv
       working-directory: test
-      run: drenv setup -v envs/regional-dr.yaml
-
-    - name: Install ramenctl
-      run: pip install -e ramenctl
+      run: |
+        source ../venv
+        drenv setup -v envs/regional-dr.yaml
 
     - name: Delete clusters
       if: always()
       working-directory: test
-      run: drenv delete --name-prefix ${{ env.NAME_PREFIX }} envs/regional-dr.yaml
+      run: |
+        source ../venv
+        drenv delete --name-prefix ${{ env.NAME_PREFIX }} envs/regional-dr.yaml
 
     - name: Setup libvirt
       run: test/scripts/setup-libvirt
@@ -49,20 +51,25 @@ jobs:
         max_attempts: 3
         command: |
           cd test
+          source ../venv
           drenv start --max-workers ${{ env.MAX_WORKERS }} --name-prefix ${{ env.NAME_PREFIX }} envs/regional-dr.yaml
 
     - name: Build ramen-operator container
       run: make docker-build
 
     - name: Deploy ramen
-      run: ramenctl deploy --name-prefix ${{ env.NAME_PREFIX }} test/envs/regional-dr.yaml
+      run: |
+        source venv
+        ramenctl deploy --name-prefix ${{ env.NAME_PREFIX }} test/envs/regional-dr.yaml
 
     - name: Configure ramen
       uses: nick-fields/retry@v3
       with:
         timeout_seconds: 120
         max_attempts: 3
-        command: ramenctl config --name-prefix ${{ env.NAME_PREFIX }} test/envs/regional-dr.yaml
+        command: |
+          source venv
+          ramenctl config --name-prefix ${{ env.NAME_PREFIX }} test/envs/regional-dr.yaml
 
     - name: Run e2e tests
       run: |
@@ -95,9 +102,13 @@ jobs:
     - name: Delete clusters
       if: always()
       working-directory: test
-      run: drenv delete --name-prefix ${{ env.NAME_PREFIX }} envs/regional-dr.yaml
+      run: |
+        source ../venv
+        drenv delete --name-prefix ${{ env.NAME_PREFIX }} envs/regional-dr.yaml
 
     - name: Cleanup drenv
       if: always()
       working-directory: test
-      run: drenv cleanup -v envs/regional-dr.yaml
+      run: |
+        source ../venv
+        drenv cleanup -v envs/regional-dr.yaml