Install fluentbit (#1312)

Author: mat-rumian

.circleci/config.yml

@@ -103,6 +103,25 @@ commands:
           keys:
             - cimg-go-pkg-mod-{{ arch }}-{{ checksum "go.sum" }}-v4
 
+  install_fluentbit:
+    steps:
+      - run: |
+          sudo chmod 0777 -R /opt
+      - restore_cache: # restores saved cache if no changes are detected since last run
+          keys:
+            - "cimg-fluentbit-{{ arch }}-1.5.3"
+      - run: |
+          sudo ln -s /opt/td-agent-bit/bin/td-agent-bit /usr/local/bin/fluent-bit
+          if [[ -f /opt/td-agent-bit/bin/td-agent-bit ]]; then
+            exit 0
+          fi
+          wget https://packages.fluentbit.io/ubuntu/bionic/pool/main/t/td-agent-bit/td-agent-bit_1.5.3_amd64.deb
+          sudo dpkg -i ./td-agent-bit*.deb
+      - save_cache:
+          key: cimg-fluentbit-{{ arch }}-1.5.3
+          paths:
+            - /opt/td-agent-bit
+
   publish_docker_images:
     parameters:
       repo:
@@ -347,6 +366,7 @@ jobs:
       TEST_RESULTS: testbed/tests/results/junit/results.xml
     steps:
       - restore_workspace
+      - install_fluentbit
       - run:
           name: Loadtest
           command: make e2e-test