datadog-agent: Remove use of unversioned python3 during build

See: wolfi-dev#37197

Signed-off-by: dann frazier <[email protected]>

buck2.yaml

@@ -42,6 +42,7 @@ pipeline:
 
   - name: Configure and build
     runs: |
+      exit 1
       # This build requires a specific version of rust nightly.
       # Be sure to check docs when bumping to more recent commits.
       rustup install ${{vars.rust-version}}

datadog-agent.yaml

@@ -68,9 +68,8 @@ environment:
       - ninja
       - openssf-compiler-options
       - procps-dev
-      - py${{vars.py-version}}-pip
+      - py${{vars.py-version}}-build-base-dev
       - py${{vars.py-version}}-semver
-      - python-${{vars.py-version}}-dev
       - systemd-dev
       - util-linux-misc # unshare
       - wget # Required for downloading clang-12 and kernel headers from debian
@@ -308,13 +307,13 @@ subpackages:
               python${{vars.py-version}} -m venv .venv
 
               # Install locked dependencies
-              .venv/bin/pip install --require-hashes --only-binary=:all: --no-deps -r .deps/resolved/linux-${{build.arch}}_${{vars.py-version}}.txt
+              .venv/bin/pip${{vars.py-version}} install --require-hashes --only-binary=:all: --no-deps -r .deps/resolved/linux-${{build.arch}}_${{vars.py-version}}.txt
 
               excludes="datadog_checks_base datadog_checks_dev datadog_checks_tests_helper docker_daemon esxi teleport"
               checks=$(invoke -r /home/build agent.collect-integrations /home/integrations/ 3 linux --excluded "$excludes")
 
               # Install core, downloader, and dependencies
-              .venv/bin/pip install \
+              .venv/bin/pip${{vars.py-version}} install \
                 "./datadog_checks_base[deps, http]" \
                 "./datadog_checks_downloader" \
                 $(echo ${checks} | xargs -n1 echo | sed 's|^|./|')
@@ -323,7 +322,7 @@ subpackages:
               find .venv -name "__pycache__" -exec rm -rf {} +
 
               mkdir -p ${{targets.contextdir}}${{vars.destd}}
-              .venv/bin/pip freeze > ${{targets.contextdir}}${{vars.destd}}/final_constraints-py3.txt
+              .venv/bin/pip${{vars.py-version}} freeze > ${{targets.contextdir}}${{vars.destd}}/final_constraints-py3.txt
 
               # Include the agent's requirements for the core integrations.
               cp requirements-agent-release.txt ${{targets.contextdir}}${{vars.destd}}/
@@ -580,8 +579,8 @@ test:
       runs: |
         PATH=$mypath:$PATH
         # this is left without path to be explicit which python is used.
-        ${{vars.destd}}/embedded/bin/python3 -c "import datadog_checks.base"
-        ${{vars.destd}}/embedded/bin/python3 -c "import datadog_checks.downloader"
+        ${{vars.destd}}/embedded/bin/python${{vars.py-version}} -c "import datadog_checks.base"
+        ${{vars.destd}}/embedded/bin/python${{vars.py-version}} -c "import datadog_checks.downloader"
     - name: Execute bins
       runs: |
         PATH=$mypath:$PATH