Merge pull request #1864 from verilog-to-routing/kokoro_proxy_issue

Fix the Kokoro Let's Encrypt Certificate issue.

Author: mithro

.github/kokoro/steps/hostsetup.sh

@@ -9,11 +9,32 @@ echo "----------------------------------------"
 sudo apt-get remove -y cmake
 echo "----------------------------------------"
 
+echo
+echo "========================================"
+echo "Update the CA certificates"
+echo "----------------------------------------"
+sudo apt-get install -y ca-certificates
+echo "----------------------------------------"
+sudo update-ca-certificates
+echo "----------------------------------------"
+
+echo
+echo "========================================"
+echo "Remove the expired letsencrypt.org cert "
+echo "----------------------------------------"
+sudo rm /usr/share/ca-certificates/mozilla/DST_Root_CA_X3.crt
+echo "----------------------------------------"
+sudo update-ca-certificates
+echo "----------------------------------------"
+wget https://helloworld.letsencrypt.org/ || true
+echo "----------------------------------------"
+
+
 echo
 echo "========================================"
 echo "Host adding PPAs"
 echo "----------------------------------------"
-wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | sudo apt-key add -
+wget --no-check-certificate -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | sudo apt-key add -
 sudo apt-add-repository 'deb https://apt.kitware.com/ubuntu/ xenial main'
 echo "----------------------------------------"