diff --git a/.gitignore b/.gitignore
index 218139f0e..22f1e19e5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,6 +10,7 @@ web/public/elm.min.js
 web/public/bundle.js
 web/public/*.bundle.js
 web/public/main.css
+docker-compose.override.yml
 *.coverprofile
 *.coverprofile.*
 *.test
diff --git a/docker-compose.override.yml b/docker-compose.override.yml
deleted file mode 120000
index 9268fc24b..000000000
--- a/docker-compose.override.yml
+++ /dev/null
@@ -1 +0,0 @@
-./hack/overrides/dev.yml
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
index a9bab91f4..22e0ce6b9 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -4,7 +4,7 @@ services:
   db:
     image: postgres:${POSTGRES_TAG:-latest}
     shm_size: 1gb
-    ports: [5432]
+    ports: [6543:5432]
     environment:
       POSTGRES_DB: concourse
       POSTGRES_USER: dev
@@ -15,8 +15,10 @@ services:
     image: concourse/concourse:local
     command: web
     depends_on: [db]
-    ports: [8080]
-    volumes: ["./hack/keys:/concourse-keys"]
+    ports: [8080:8080]
+    volumes:
+    - .:/src
+    - "./hack/keys:/concourse-keys"
     environment:
       CONCOURSE_SESSION_SIGNING_KEY: /concourse-keys/session_signing_key
       CONCOURSE_TSA_AUTHORIZED_KEYS: /concourse-keys/authorized_worker_keys
@@ -40,6 +42,9 @@ services:
     command: worker
     privileged: true
     depends_on: [web]
+    ports:
+    - 7777:7777
+    - 7788:7788
     volumes: ["./hack/keys:/concourse-keys"]
     stop_signal: SIGUSR2
     environment:
@@ -49,6 +54,9 @@ services:
       CONCOURSE_LOG_LEVEL: debug
       CONCOURSE_TSA_HOST: web:2222
 
+      CONCOURSE_BIND_IP: 0.0.0.0
+      CONCOURSE_BAGGAGECLAIM_BIND_IP: 0.0.0.0
+
       # avoid using loopbacks
       CONCOURSE_BAGGAGECLAIM_DRIVER: overlay
 
diff --git a/hack/overrides/dev.yml b/hack/overrides/dev.yml
deleted file mode 100644
index 7dbee651d..000000000
--- a/hack/overrides/dev.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-version: '3'
-
-services:
-  db:
-    ports: [6543:5432]
-
-  web:
-    ports: [8080:8080]
-    volumes:
-      - .:/src
-
-  worker:
-    ports:
-    - 7777:7777
-    - 7788:7788
-    environment:
-      CONCOURSE_BIND_IP: 0.0.0.0
-      CONCOURSE_BAGGAGECLAIM_BIND_IP: 0.0.0.0
diff --git a/integration/creds/overrides/vault.yml b/integration/creds/overrides/vault.yml
index 66eefc418..8bf3ac793 100644
--- a/integration/creds/overrides/vault.yml
+++ b/integration/creds/overrides/vault.yml
@@ -3,7 +3,7 @@ version: '3'
 services:
   web:
     volumes:
-    - ./hack/vault/certs:/vault-certs
+    - ../hack/vault/certs:/vault-certs
     environment:
       CONCOURSE_VAULT_URL: https://vault:8200
       CONCOURSE_VAULT_AUTH_BACKEND: cert
@@ -16,8 +16,8 @@ services:
     cap_add: [IPC_LOCK]
     ports: [8200]
     volumes:
-    - ./hack/vault/certs:/vault/certs
-    - ./hack/vault/config:/vault/config
+    - ../hack/vault/certs:/vault/certs
+    - ../hack/vault/config:/vault/config
     command: server
     environment:
       # for running the 'vault' CLI
diff --git a/integration/creds/vault_test.go b/integration/creds/vault_test.go
index 81f1395dd..40ad5ed30 100644
--- a/integration/creds/vault_test.go
+++ b/integration/creds/vault_test.go
@@ -14,7 +14,7 @@ import (
 func TestVault(t *testing.T) {
 	t.Parallel()
 
-	dc := dctest.Init(t, "../../docker-compose.yml", "overrides/vault.yml")
+	dc := dctest.Init(t, "../docker-compose.yml", "overrides/vault.yml")
 	require.NoError(t, dc.Run("up", "-d"))
 
 	vault := vaulttest.Init(t, dc)
diff --git a/integration/docker-compose.yml b/integration/docker-compose.yml
new file mode 100644
index 000000000..bd75a9b5b
--- /dev/null
+++ b/integration/docker-compose.yml
@@ -0,0 +1,57 @@
+version: '3'
+
+services:
+  db:
+    image: ${TEST_POSTGRES_IMAGE:-postgres}
+    shm_size: 1gb
+    ports: [5432]
+    environment:
+      POSTGRES_DB: concourse
+      POSTGRES_USER: dev
+      POSTGRES_PASSWORD: dev
+
+  web:
+    image: ${TEST_CONCOURSE_DEV_IMAGE:-concourse/concourse:local}
+    command: web
+    depends_on: [db]
+    ports: [8080]
+    volumes:
+    - ..:/src
+    - ../hack/keys:/concourse-keys
+    environment:
+      CONCOURSE_SESSION_SIGNING_KEY: /concourse-keys/session_signing_key
+      CONCOURSE_TSA_AUTHORIZED_KEYS: /concourse-keys/authorized_worker_keys
+      CONCOURSE_TSA_HOST_KEY: /concourse-keys/tsa_host_key
+
+      CONCOURSE_LOG_LEVEL: debug
+      CONCOURSE_POSTGRES_HOST: db
+      CONCOURSE_POSTGRES_USER: dev
+      CONCOURSE_POSTGRES_PASSWORD: dev
+      CONCOURSE_POSTGRES_DATABASE: concourse
+      CONCOURSE_EXTERNAL_URL: http://localhost:8080
+      CONCOURSE_ADD_LOCAL_USER: test:test,guest:guest
+      CONCOURSE_MAIN_TEAM_LOCAL_USER: test
+      CONCOURSE_CLUSTER_NAME: test
+      CONCOURSE_ENABLE_PIPELINE_INSTANCES: "true"
+      CONCOURSE_ENABLE_ACROSS_STEP: "true"
+
+  worker:
+    image: ${TEST_CONCOURSE_DEV_IMAGE:-concourse/concourse:local}
+    command: worker
+    privileged: true
+    depends_on: [web]
+    ports: [7777, 7788]
+    volumes: ["../hack/keys:/concourse-keys"]
+    stop_signal: SIGUSR2
+    environment:
+      CONCOURSE_TSA_PUBLIC_KEY: /concourse-keys/tsa_host_key.pub
+      CONCOURSE_TSA_WORKER_PRIVATE_KEY: /concourse-keys/worker_key
+
+      CONCOURSE_LOG_LEVEL: debug
+      CONCOURSE_TSA_HOST: web:2222
+
+      # avoid using loopbacks
+      CONCOURSE_BAGGAGECLAIM_DRIVER: overlay
+
+      # work with docker-compose's dns
+      CONCOURSE_GARDEN_DNS_PROXY_ENABLE: "true"
diff --git a/integration/internal/dctest/cmd.go b/integration/internal/dctest/cmd.go
index 2fe8ecf53..b07e469e0 100644
--- a/integration/internal/dctest/cmd.go
+++ b/integration/internal/dctest/cmd.go
@@ -19,9 +19,11 @@ type Cmd struct {
 	cmdtest.Cmd
 }
 
-func Init(t *testing.T, files ...string) Cmd {
+func Init(t *testing.T, composeFile string, overrides ...string) Cmd {
 	name := filepath.Base(t.Name())
 
+	files := append([]string{composeFile}, overrides...)
+
 	dc := cmdtest.Cmd{
 		Path: "docker-compose",
 		Env: []string{
diff --git a/integration/ops/downgrade_test.go b/integration/ops/downgrade_test.go
index 2b35d66a6..74861b4be 100644
--- a/integration/ops/downgrade_test.go
+++ b/integration/ops/downgrade_test.go
@@ -12,87 +12,41 @@ import (
 func TestDowngrade(t *testing.T) {
 	t.Parallel()
 
-	dc := dctest.Init(t, "../../docker-compose.yml")
+	devDC := dctest.Init(t, "../docker-compose.yml")
 
 	t.Run("deploy dev", func(t *testing.T) {
-		require.NoError(t, dc.Run("up", "-d"))
+		require.NoError(t, devDC.Run("up", "-d"))
 	})
 
-	fly := flytest.Init(t, dc)
+	fly := flytest.Init(t, devDC)
 	setupUpgradeDowngrade(t, fly)
 
-	latestDC := dctest.Init(t, "../../docker-compose.yml", "overrides/latest.yml")
+	latestDC := dctest.Init(t, "../docker-compose.yml", "overrides/latest.yml")
 
-	latest, err := latestDC.Output("run", "web", "migrate", "--supported-db-version")
-	require.NoError(t, err)
-	latest = strings.TrimRight(latest, "\n")
-
-	t.Run("down migrations", func(t *testing.T) {
+	t.Run("migrate down to latest from clean deploy", func(t *testing.T) {
 		// just to see what it was before
-		err := dc.Run("run", "web", "migrate", "--current-db-version")
+		err := devDC.Run("run", "web", "migrate", "--current-db-version")
 		require.NoError(t, err)
 
-		err = dc.Run("run", "web", "migrate", "--migrate-db-to-version", latest)
+		latest, err := latestDC.Output("run", "web", "migrate", "--supported-db-version")
+		require.NoError(t, err)
+		latest = strings.TrimRight(latest, "\n")
+
+		err = devDC.Run("run", "web", "migrate", "--migrate-db-to-version", latest)
 		require.NoError(t, err)
 	})
 
-	t.Run("downgrade to latest", func(t *testing.T) {
+	t.Run("deploy latest", func(t *testing.T) {
 		require.NoError(t, latestDC.Run("up", "-d"))
 	})
 
 	fly = flytest.Init(t, latestDC)
 	verifyUpgradeDowngrade(t, fly)
 
-	t.Run("upgrading after downgrade", func(t *testing.T) {
-		require.NoError(t, dc.Run("up", "-d"))
+	t.Run("migrate up to dev and deploy dev", func(t *testing.T) {
+		require.NoError(t, devDC.Run("up", "-d"))
 	})
 
-	fly = flytest.Init(t, dc)
+	fly = flytest.Init(t, devDC)
 	verifyUpgradeDowngrade(t, fly)
 }
-
-func setupUpgradeDowngrade(t *testing.T, fly flytest.Cmd) {
-	t.Run("set up test pipeline", func(t *testing.T) {
-		err := fly.Run("set-pipeline", "-p", "test", "-c", "pipelines/smoke-pipeline.yml", "-n")
-		require.NoError(t, err)
-
-		err = fly.Run("unpause-pipeline", "-p", "test")
-		require.NoError(t, err)
-
-		err = fly.Run("trigger-job", "-j", "test/say-hello", "-w")
-		require.NoError(t, err)
-	})
-}
-
-func verifyUpgradeDowngrade(t *testing.T, fly flytest.Cmd) {
-	t.Run("pipeline and build still exists", func(t *testing.T) {
-		err := fly.Run("get-pipeline", "-p", "test")
-		require.NoError(t, err)
-
-		out, err := fly.Output("watch", "-j", "test/say-hello")
-		require.NoError(t, err)
-		require.Contains(t, out, "Hello, world!")
-	})
-
-	t.Run("can still run pipeline builds", func(t *testing.T) {
-		err := fly.Run("trigger-job", "-j", "test/say-hello", "-w")
-		require.NoError(t, err)
-	})
-
-	t.Run("can still run checks", func(t *testing.T) {
-		err := fly.Run("check-resource", "-r", "test/mockery")
-		require.NoError(t, err)
-	})
-
-	t.Run("can still reach the internet", func(t *testing.T) {
-		out, err := fly.Output("trigger-job", "-j", "test/use-the-internet", "-w")
-		require.NoError(t, err)
-		require.Contains(t, out, "Example Domain")
-	})
-
-	t.Run("can still run one-off builds", func(t *testing.T) {
-		out, err := fly.Output("execute", "-c", "tasks/hello.yml")
-		require.NoError(t, err)
-		require.Contains(t, out, "hello")
-	})
-}
diff --git a/integration/ops/suite_test.go b/integration/ops/suite_test.go
new file mode 100644
index 000000000..728433f91
--- /dev/null
+++ b/integration/ops/suite_test.go
@@ -0,0 +1,54 @@
+package ops_test
+
+import (
+	"testing"
+
+	"github.com/concourse/concourse/integration/internal/flytest"
+	"github.com/stretchr/testify/require"
+)
+
+func setupUpgradeDowngrade(t *testing.T, fly flytest.Cmd) {
+	t.Run("set up test pipeline", func(t *testing.T) {
+		err := fly.Run("set-pipeline", "-p", "test", "-c", "pipelines/smoke-pipeline.yml", "-n")
+		require.NoError(t, err)
+
+		err = fly.Run("unpause-pipeline", "-p", "test")
+		require.NoError(t, err)
+
+		err = fly.Run("trigger-job", "-j", "test/say-hello", "-w")
+		require.NoError(t, err)
+	})
+}
+
+func verifyUpgradeDowngrade(t *testing.T, fly flytest.Cmd) {
+	t.Run("pipeline and build still exists", func(t *testing.T) {
+		err := fly.Run("get-pipeline", "-p", "test")
+		require.NoError(t, err)
+
+		out, err := fly.Output("watch", "-j", "test/say-hello")
+		require.NoError(t, err)
+		require.Contains(t, out, "Hello, world!")
+	})
+
+	t.Run("can still run pipeline builds", func(t *testing.T) {
+		err := fly.Run("trigger-job", "-j", "test/say-hello", "-w")
+		require.NoError(t, err)
+	})
+
+	t.Run("can still run checks", func(t *testing.T) {
+		err := fly.Run("check-resource", "-r", "test/mockery")
+		require.NoError(t, err)
+	})
+
+	t.Run("can still reach the internet", func(t *testing.T) {
+		out, err := fly.Output("trigger-job", "-j", "test/use-the-internet", "-w")
+		require.NoError(t, err)
+		require.Contains(t, out, "Example Domain")
+	})
+
+	t.Run("can still run one-off builds", func(t *testing.T) {
+		out, err := fly.Output("execute", "-c", "tasks/hello.yml")
+		require.NoError(t, err)
+		require.Contains(t, out, "hello")
+	})
+}
diff --git a/integration/ops/upgrade_test.go b/integration/ops/upgrade_test.go
index 2ac81e116..14133d94f 100644
--- a/integration/ops/upgrade_test.go
+++ b/integration/ops/upgrade_test.go
@@ -11,21 +11,21 @@ import (
 func TestUpgrade(t *testing.T) {
 	t.Parallel()
 
-	dc := dctest.Init(t, "../../docker-compose.yml", "overrides/latest.yml")
+	latestDC := dctest.Init(t, "../docker-compose.yml", "overrides/latest.yml")
 
 	t.Run("deploy latest", func(t *testing.T) {
-		require.NoError(t, dc.Run("up", "-d"))
+		require.NoError(t, latestDC.Run("up", "-d"))
 	})
 
-	fly := flytest.Init(t, dc)
+	fly := flytest.Init(t, latestDC)
 	setupUpgradeDowngrade(t, fly)
 
-	dc = dctest.Init(t)
+	devDC := dctest.Init(t, "../docker-compose.yml")
 
 	t.Run("upgrade to dev", func(t *testing.T) {
-		require.NoError(t, dc.Run("up", "-d"))
+		require.NoError(t, devDC.Run("up", "-d"))
 	})
 
-	fly = flytest.Init(t, dc)
+	fly = flytest.Init(t, devDC)
 	verifyUpgradeDowngrade(t, fly)
 }