test: add GitHub action for end-to-end tests (#5452)

Partial fix for #5291.

.github/workflows/e2e.yml

@@ -0,0 +1,38 @@
+name: e2e-tests
+# Runs the CI end-to-end test network on all pushes to master or release branches
+# and every pull request, but only if any Go files have been changed.
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - release/**
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@v2
+      - uses: technote-space/get-diff-action@v3
+        with:
+          SUFFIX_FILTER: |
+            .go
+            .mod
+            .sum
+          SET_ENV_NAME_INSERTIONS: 1
+          SET_ENV_NAME_LINES: 1
+
+      - name: Build
+        working-directory: test/e2e
+        # Run two make jobs in parallel, since we can't run steps in parallel.
+        run: make -j2 docker runner
+
+      - name: Run CI testnet
+        working-directory: test/e2e
+        run: sudo ./build/runner -f networks/ci.toml
+
+      - name: Emit logs on failure
+        if: ${{ failure() }}
+        working-directory: test/e2e
+        run: ./build/runner -f networks/ci.toml logs

test/e2e/README.md

@@ -36,6 +36,8 @@ The test runner has the following stages, which can also be executed explicitly
 
 * `logs`: outputs all node logs.
 
+* `tail`: tails (follows) node logs until cancelled.
+
 ## Tests
 
 Test cases are written as normal Go tests in `tests/`. They use a `testNode()` helper which executes each test as a parallel subtest for each node in the network.

test/e2e/docker/Dockerfile

@@ -3,8 +3,8 @@
 # instead of spending time compiling them.
 FROM golang:1.15
 
-RUN apt-get update -y && apt-get upgrade -y
-RUN apt-get install -y libleveldb-dev librocksdb-dev
+RUN apt-get -qq update -y && apt-get -qq upgrade -y >/dev/null
+RUN apt-get -qq install -y libleveldb-dev librocksdb-dev >/dev/null
 
 # Set up build directory /src/tendermint
 ENV TENDERMINT_BUILD_OPTIONS badgerdb,boltdb,cleveldb,rocksdb

test/e2e/runner/main.go

@@ -167,6 +167,14 @@ func NewCLI() *CLI {
 	cli.root.AddCommand(&cobra.Command{
 		Use:   "logs",
 		Short: "Shows the testnet logs",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return execComposeVerbose(cli.testnet.Dir, "logs")
+		},
+	})
+
+	cli.root.AddCommand(&cobra.Command{
+		Use:   "tail",
+		Short: "Tails the testnet logs",
 		RunE: func(cmd *cobra.Command, args []string) error {
 			return execComposeVerbose(cli.testnet.Dir, "logs", "--follow")
 		},