Merge pull request #10289 from travisn/generate-docs-ci

ci: Install and use pip3 for the docs generation script

.github/workflows/push-build.yaml

@@ -14,7 +14,7 @@ defaults:
 
 jobs:
   push-image-to-container-registry:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     if: github.repository == 'rook/rook'
     steps:
       - name: checkout
@@ -51,6 +51,11 @@ jobs:
           echo "BRANCH_NAME=${GITHUB_REF##*/}" >> $GITHUB_ENV
           echo "GITHUB_REF"=${GITHUB_REF} >> $GITHUB_ENV
 
+      - name: pip install
+        run: |
+          sudo apt-get update
+          sudo apt-get -y install python3-pip
+
       - name: build and release
         env:
           GIT_API_TOKEN: ${{ secrets.GIT_API_TOKEN }}

build/release/Makefile

@@ -132,7 +132,7 @@ endif
 # ====================================================================================
 # docs
 build.docs:
-	pip install -r requirements_docs.txt
+	pip3 install -r requirements_docs.txt
 
 publish.docs:
 	if ! git remote show docs > /dev/null 2>&1; then git remote add docs $(DOCS_GIT_REPO); fi