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

Partial fix for #5291.

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")
 		},