Update Dockerfile to use pre-built OpenSSH binary and fix test refere…

…nce to SSH binary (#522)

* Update Dockerfile to use pre-built OpenSSH binary and fix test reference to SSH binary

* Add support for multiple SSH binary versions in tests

Dockerfile

@@ -13,15 +13,9 @@ RUN --mount=target=/src,type=bind,source=. --mount=type=cache,target=/root/.cach
 ADD entrypoint.sh /sshpiperd
 
 FROM builder as testrunner
-RUN apt update && apt install -y autoconf automake libssl-dev libz-dev
-
-RUN cd /tmp && \
-    curl -fsSL https://github.com/openssh/openssh-portable/archive/refs/tags/V_9_8_P1.tar.gz | tar xz && \
-    cd openssh-portable-V_9_8_P1 && \
-    autoreconf && \
-    ./configure && \
-    make ssh && \
-    cp ssh /usr/bin/ssh-9.8.1p1
+
+COPY --from=farmer1992/openssh-static:V_9_8_P1 /usr/bin/ssh /usr/bin/ssh-9.8p1
+COPY --from=farmer1992/openssh-static:V_8_0_P1 /usr/bin/ssh /usr/bin/ssh-8.0p1
 
 FROM docker.io/busybox
 # LABEL maintainer="Boshi Lian<[email protected]>"

e2e/fixed_test.go

@@ -30,41 +30,58 @@ func TestFixed(t *testing.T) {
 
 	waitForEndpointReady(piperaddr)
 
-	randtext := uuid.New().String()
-	targetfie := uuid.New().String()
-
-	c, stdin, stdout, err := runCmd(
-		"ssh-9.8.1p1",
-		"-v",
-		"-o",
-		"StrictHostKeyChecking=no",
-		"-o",
-		"UserKnownHostsFile=/dev/null",
-		"-o",
-		"RequestTTY=yes",
-		"-p",
-		piperport,
-		"-l",
-		"user",
-		"127.0.0.1",
-		fmt.Sprintf(`sh -c "echo SSHREADY && sleep 1 && echo -n %v > /shared/%v"`, randtext, targetfie), // sleep 1 to cover https://github.com/tg123/sshpiper/issues/323
-	)
-
-	if err != nil {
-		t.Errorf("failed to ssh to piper-fixed, %v", err)
+	for _, tc := range []struct {
+		name string
+		bin  string
+	}{
+		{
+			name: "without-sshping",
+			bin:  "ssh-8.0p1",
+		},
+		{
+			name: "with-sshping",
+			bin:  "ssh-9.8p1",
+		},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			randtext := uuid.New().String()
+			targetfie := uuid.New().String()
+
+			c, stdin, stdout, err := runCmd(
+				tc.bin,
+				"-v",
+				"-o",
+				"StrictHostKeyChecking=no",
+				"-o",
+				"UserKnownHostsFile=/dev/null",
+				"-o",
+				"RequestTTY=yes",
+				"-p",
+				piperport,
+				"-l",
+				"user",
+				"127.0.0.1",
+				fmt.Sprintf(`sh -c "echo SSHREADY && sleep 1 && echo -n %v > /shared/%v"`, randtext, targetfie), // sleep 1 to cover https://github.com/tg123/sshpiper/issues/323
+			)
+
+			if err != nil {
+				t.Errorf("failed to ssh to piper-fixed, %v", err)
+			}
+
+			defer killCmd(c)
+
+			enterPassword(stdin, stdout, "pass")
+
+			waitForStdoutContains(stdout, "SSHREADY", func(_ string) {
+				_, _ = stdin.Write([]byte(fmt.Sprintf("%v\n", "triggerping")))
+			})
+
+			time.Sleep(time.Second * 3) // wait for file flush
+
+			checkSharedFileContent(t, targetfie, randtext)
+		})
 	}
 
-	defer killCmd(c)
-
-	enterPassword(stdin, stdout, "pass")
-
-	waitForStdoutContains(stdout, "SSHREADY", func(_ string) {
-		_, _ = stdin.Write([]byte(fmt.Sprintf("%v\n", "triggerping")))
-	})
-
-	time.Sleep(time.Second * 3) // wait for file flush
-
-	checkSharedFileContent(t, targetfie, randtext)
 }
 
 func TestHostkeyParam(t *testing.T) {