From 23f89c3da257213f61f0db569460dc422bdf1093 Mon Sep 17 00:00:00 2001
From: Jamie Gaskins <jgaskins@hey.com>
Date: Tue, 20 Sep 2022 08:17:59 -0400
Subject: [PATCH 1/5] Add initial CI

---
 .github/workflows/crystal.yml | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 .github/workflows/crystal.yml

diff --git a/.github/workflows/crystal.yml b/.github/workflows/crystal.yml
new file mode 100644
index 0000000..c89c851
--- /dev/null
+++ b/.github/workflows/crystal.yml
@@ -0,0 +1,28 @@
+name: Crystal CI
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    container:
+      image: crystallang/crystal
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Docker Run Action
+      # You may pin to the exact commit or the version.
+      uses: addnab/docker-run-action@4f65fabd2431ebc8d299f8e5a018d79a769ae185
+      with:
+        # Image
+        image: redis/redis-stack-server
+        # Run command in container
+        run: redis-stack-server
+    - name: Install dependencies
+      run: shards install
+    - name: Run tests
+      run: crystal spec

From 0818453e13c024508601bbb24b559dd9788a4043 Mon Sep 17 00:00:00 2001
From: Jamie Gaskins <jgaskins@hey.com>
Date: Tue, 20 Sep 2022 18:32:39 -0400
Subject: [PATCH 2/5] Detach Redis server when running

---
 .github/workflows/crystal.yml | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/.github/workflows/crystal.yml b/.github/workflows/crystal.yml
index c89c851..d185021 100644
--- a/.github/workflows/crystal.yml
+++ b/.github/workflows/crystal.yml
@@ -15,12 +15,10 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - name: Docker Run Action
-      # You may pin to the exact commit or the version.
       uses: addnab/docker-run-action@4f65fabd2431ebc8d299f8e5a018d79a769ae185
       with:
-        # Image
         image: redis/redis-stack-server
-        # Run command in container
+        options: --detach
         run: redis-stack-server
     - name: Install dependencies
       run: shards install

From 5ba09b295ac927ddfe9bb4adb279105f5c053ef2 Mon Sep 17 00:00:00 2001
From: Jamie Gaskins <jgaskins@hey.com>
Date: Tue, 20 Sep 2022 18:37:29 -0400
Subject: [PATCH 3/5] Expose Redis port

---
 .github/workflows/crystal.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/crystal.yml b/.github/workflows/crystal.yml
index d185021..e15d096 100644
--- a/.github/workflows/crystal.yml
+++ b/.github/workflows/crystal.yml
@@ -18,7 +18,7 @@ jobs:
       uses: addnab/docker-run-action@4f65fabd2431ebc8d299f8e5a018d79a769ae185
       with:
         image: redis/redis-stack-server
-        options: --detach
+        options: --detach -p 6379:6379
         run: redis-stack-server
     - name: Install dependencies
       run: shards install

From da1475afed516091a516ed1349cf07498477fcb9 Mon Sep 17 00:00:00 2001
From: Jamie Gaskins <jgaskins@hey.com>
Date: Tue, 20 Sep 2022 18:42:51 -0400
Subject: [PATCH 4/5] Try the "services" option
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

I don't know why I didn't try this before 🙃
---
 .github/workflows/crystal.yml | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/crystal.yml b/.github/workflows/crystal.yml
index e15d096..be23dd0 100644
--- a/.github/workflows/crystal.yml
+++ b/.github/workflows/crystal.yml
@@ -12,14 +12,18 @@ jobs:
     container:
       image: crystallang/crystal
 
+    services:
+      redis:
+        image: redis/redis-stack-server
+        # Set health checks to wait until redis has started
+        options: >-
+          --health-cmd "redis-cli ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+
     steps:
     - uses: actions/checkout@v3
-    - name: Docker Run Action
-      uses: addnab/docker-run-action@4f65fabd2431ebc8d299f8e5a018d79a769ae185
-      with:
-        image: redis/redis-stack-server
-        options: --detach -p 6379:6379
-        run: redis-stack-server
     - name: Install dependencies
       run: shards install
     - name: Run tests

From 4c535f691cdb9485c331ddaf6053c4c0ad6da018 Mon Sep 17 00:00:00 2001
From: Jamie Gaskins <jgaskins@hey.com>
Date: Tue, 20 Sep 2022 18:46:43 -0400
Subject: [PATCH 5/5] Default connection to REDIS_URL

This is also what Cluster does, except it uses REDIS_CLUSTER_URL
---
 .github/workflows/crystal.yml | 2 ++
 src/connection.cr             | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/crystal.yml b/.github/workflows/crystal.yml
index be23dd0..a7afcb8 100644
--- a/.github/workflows/crystal.yml
+++ b/.github/workflows/crystal.yml
@@ -28,3 +28,5 @@ jobs:
       run: shards install
     - name: Run tests
       run: crystal spec
+      env:
+        REDIS_URL: redis://redis/
diff --git a/src/connection.cr b/src/connection.cr
index f40a8bc..e45577b 100644
--- a/src/connection.cr
+++ b/src/connection.cr
@@ -21,7 +21,7 @@ module Redis
     # SSL connections require specifying the `rediss://` scheme.
     # Password authentication uses the URI password.
     # DB selection uses the URI path.
-    def initialize(@uri = URI.parse("redis:///"))
+    def initialize(@uri = URI.parse(ENV.fetch("REDIS_URL", "redis:///")))
       host = uri.host.presence || "localhost"
       port = uri.port || 6379
       socket = TCPSocket.new(host, port)