From 05f030fbb5f37aabbcae7b4731f7a30562304b6c Mon Sep 17 00:00:00 2001
From: Masashi Shibata <c-bata@users.noreply.github.com>
Date: Wed, 29 Dec 2021 02:38:53 +0900
Subject: [PATCH 1/3] Create docker-ghcr.yml

---
 .github/workflows/docker-ghcr.yml | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 .github/workflows/docker-ghcr.yml

diff --git a/.github/workflows/docker-ghcr.yml b/.github/workflows/docker-ghcr.yml
new file mode 100644
index 00000000..99ba6964
--- /dev/null
+++ b/.github/workflows/docker-ghcr.yml
@@ -0,0 +1,25 @@
+name: Publish a Docker image to ghcr.io
+on:
+  pull_request:
+    branches:
+      - main
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - run: echo "REPO=${GITHUB_REPOSITORY,,}" >> $GITHUB_ENV
+      - name: Enable buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Login
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Docker build/push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          push: true
+          tags: ghcr.io/${{ env.REPO }}:latest

From 17217a008ba97dab0273c7aad60c63b63cad38b1 Mon Sep 17 00:00:00 2001
From: c-bata <contact@c-bata.link>
Date: Wed, 29 Dec 2021 03:35:13 +0900
Subject: [PATCH 2/3] Update the trigger of docker-ghcr action

---
 .github/workflows/docker-ghcr.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/docker-ghcr.yml b/.github/workflows/docker-ghcr.yml
index 99ba6964..53c925c3 100644
--- a/.github/workflows/docker-ghcr.yml
+++ b/.github/workflows/docker-ghcr.yml
@@ -1,8 +1,8 @@
 name: Publish a Docker image to ghcr.io
 on:
-  pull_request:
-    branches:
-      - main
+  push:
+    tags:
+      - v*.*.*
 jobs:
   build:
     runs-on: ubuntu-latest

From 49a818af8c1a632f90bc3360a207a370e3596efc Mon Sep 17 00:00:00 2001
From: c-bata <contact@c-bata.link>
Date: Wed, 29 Dec 2021 03:42:08 +0900
Subject: [PATCH 3/3] Update README for Docker image

---
 README.md | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/README.md b/README.md
index 80f9ea65..debcf429 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,30 @@ optional arguments:
 
 </details>
 
+
+## Usage (Docker)
+
+You can also use a Docker image to run optuna-dashboard.
+The image only supports SQLite3, MySQL(PyMySQL), and PostgreSQL(Psycopg2).
+
+```
+# SQLite3
+$ docker run -it --rm -p 8080:8080 -v `PWD`:/app ghcr.io/optuna/optuna-dashboard sqlite:///db.sqlite3
+```
+
+```
+# MySQL (PyMySQL)
+$ docker run -it --rm -p 8080:8080 ghcr.io/optuna/optuna-dashboard mysql+pymysql://username:password@hostname:3306/dbname
+```
+
+```
+# PostgreSQL (Psycopg2)
+$ docker run -it --rm -p 8080:8080 ghcr.io/optuna/optuna-dashboard postgresql+psycopg2://username:password@hostname:5432/dbname
+```
+
+https://github.com/optuna/optuna-dashboard/pkgs/container/optuna-dashboard
+
+
 ## Features
 
 ### Manage studies