Freezes extra packages to run pylint CI (#1830)

Author: pcrespov

ci/helpers/install_pylint.bash

@@ -7,15 +7,15 @@
 set -euo pipefail
 IFS=$'\n\t'
 
+CURDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+
+
 REQUIREMENTS=packages/service-library/requirements/_test.txt
 PYLINT_VERSION="$(grep pylint== $REQUIREMENTS | awk '{print $1}')"
 pip3 install "$PYLINT_VERSION"
 
 # Minimal packages to pass linter
-pip install \
-  celery\
-  docker\
-  pyjwt
+pip install -r $CURDIR/requirements.txt
 
 
 echo "INFO:" "$(pylint --version)" "@" "$(command -v pylint)"

ci/helpers/requirements.in

@@ -0,0 +1,6 @@
+# Minimal packages for install_pylint.bash
+#
+# NOTE: keep frozen since it caused errors in the past
+celery==4.4.7
+docker==4.3.1
+pyjwt==1.7.1

ci/helpers/requirements.txt

@@ -0,0 +1,23 @@
+#
+# This file is autogenerated by pip-compile
+# To update, run:
+#
+#    pip-compile requirements.in
+#
+amqp==2.6.1               # via kombu
+billiard==3.6.3.0         # via celery
+celery==4.4.7             # via -r requirements.in
+certifi==2020.6.20        # via requests
+chardet==3.0.4            # via requests
+docker==4.3.1             # via -r requirements.in
+idna==2.10                # via requests
+importlib-metadata==2.0.0  # via kombu
+kombu==4.6.11             # via celery
+pyjwt==1.7.1              # via -r requirements.in
+pytz==2020.1              # via celery
+requests==2.24.0          # via docker
+six==1.15.0               # via docker, websocket-client
+urllib3==1.25.10          # via requests
+vine==1.3.0               # via amqp, celery
+websocket-client==0.57.0  # via docker
+zipp==3.2.0               # via importlib-metadata