diff --git a/.github/workflows/debug.yml b/.github/workflows/debug.yml
deleted file mode 100644
index a678421..0000000
--- a/.github/workflows/debug.yml
+++ /dev/null
@@ -1,32 +0,0 @@
-name: debug
-
-on: push
-
-jobs:
-  one:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Dump GitHub context
-        env:
-          GITHUB_CONTEXT: ${{ toJson(github) }}
-        run: echo "$GITHUB_CONTEXT"
-      - name: Dump job context
-        env:
-          JOB_CONTEXT: ${{ toJson(job) }}
-        run: echo "$JOB_CONTEXT"
-      - name: Dump steps context
-        env:
-          STEPS_CONTEXT: ${{ toJson(steps) }}
-        run: echo "$STEPS_CONTEXT"
-      - name: Dump runner context
-        env:
-          RUNNER_CONTEXT: ${{ toJson(runner) }}
-        run: echo "$RUNNER_CONTEXT"
-      - name: Dump strategy context
-        env:
-          STRATEGY_CONTEXT: ${{ toJson(strategy) }}
-        run: echo "$STRATEGY_CONTEXT"
-      - name: Dump matrix context
-        env:
-          MATRIX_CONTEXT: ${{ toJson(matrix) }}
-        run: echo "$MATRIX_CONTEXT"
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3dd00b2..51407ee 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,6 +10,10 @@ on:
   release:
     types: [published]
 
+env:
+  registory: 'jiro4989/websh'
+  image-tag: 'latest'
+
 jobs:
   skip:
     runs-on: ubuntu-latest
@@ -27,27 +31,38 @@ jobs:
     needs: before
     steps:
       - uses: actions/checkout@v1
-      - name: Pull docker image
-        run: docker pull jiro4989/websh:latest
-      - uses: jiro4989/setup-nim-action@v1
-        with:
-          nim-version: devel
-      - name: Test server
+      - name: Setup
         run: |
           pushd websh_server
           echo -e '\nswitch("d", "ci")' > tests/config.nims
-          nimble test -Y
-      - name: Build server
-        run: docker-compose -f docker-compose-ci.yml run server
-      # FIXME: GitHubActionsでDockerAPIを使用可能にする必要がある
-      # - name: Test API
-      #   run: ./.github/scripts/api_test.sh
-      - name: Build front
-        run: docker-compose -f docker-compose-ci.yml run front
-      - name: Archive release files
+
+      - name: Build image (base)
+        run: docker build --target base -t base .
+
+      - name: Build (front)
+        run: docker build --target websh_front_builder .
+
+      - name: Test (server)
+        run: docker run --rm -v $PWD/websh_server:/work -t base nimble test -Y
+
+      - name: Build image (server runtime)
+        run: docker build --target websh_server_runtime -t ${{ env.registory }}:server-${{ env.image-tag }} .
+
+      - name: Build image (remover runtime)
+        run: docker build --target websh_remover_runtime -t ${{ env.registory }}:remover-${{ env.image-tag }} .
+
+      - name: Login docker
+        run: echo "${{ secrets.DOCKER_PASS }}" | docker login -u "${{ secrets.DOCKER_USER }}" --password-stdin
+
+      - name: Push image to registory
+        run: |
+          docker push ${{ env.registory }}:server-${{ env.image-tag }}
+          docker push ${{ env.registory }}:remover-${{ env.image-tag }}
+        if: startsWith(github.ref, 'refs/tags/')
+
+      - name: Create artifact
         run: |
           mkdir -p dist/websh
-          cp -r websh_server/bin dist/websh
           cp -r websh_front/public dist/websh
           git describe --tags --abbrev=0 > dist/websh/tag.txt
           pushd dist
diff --git a/.gitignore b/.gitignore
index e853fe7..3e38394 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,10 +1,9 @@
-/bin/
+websh_server/bin/*
+websh_server/tests/twebsh_server
+websh_server/tmp/*
+!websh_server/tmp/.gitkeep
 
-websh_server/bin/websh_server
 websh_front/public/js/index.js
 websh_front/tests/*.js
 
-websh_server/tests/twebsh_server
-
-websh_server/bin/websh_remover
-websh_server/tools/visor
\ No newline at end of file
+websh_remover/bin/*
diff --git a/Dockerfile b/Dockerfile
index 0ac2975..b7aa7fe 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,14 +1,48 @@
-FROM ubuntu:19.10
+FROM alpine:3.12 AS base
 
-RUN apt-get update -yqq \
-    && apt-get install -y --no-install-recommends \
-       ca-certificates \
-       curl \
-       build-essential \
-       git \
-       ;
+RUN apk add --no-cache \
+    alpine-sdk
 
 ENV PATH /root/.nimble/bin:$PATH
-RUN curl https://nim-lang.org/choosenim/init.sh -sSf > init.sh
-RUN sh init.sh -y \
-    && choosenim devel
+
+# install nim (#devel) and nim-tools
+RUN mkdir -p /nim && \
+    git clone https://github.com/nim-lang/Nim /nim && \
+    cd /nim && \
+    sh build_all.sh && \
+    ln -s `pwd`/bin/nim /bin/nim && \
+    nim c koch && \
+    ./koch tools && \
+    ln -s `pwd`/bin/nimble /bin/nimble && \
+    ln -s `pwd`/bin/nimsuggest /bin/nimsuggest
+
+RUN mkdir /work
+WORKDIR /work
+
+################################################################################
+# builder stages
+################################################################################
+
+FROM base AS websh_front_builder
+COPY websh_front/ /work
+RUN nimble build -Y
+
+FROM base AS websh_server_builder
+COPY websh_server/ /work
+RUN nimble build -Y -d:release
+
+FROM base AS websh_remover_builder
+COPY websh_remover/ /work
+RUN nimble build -Y -d:release
+
+################################################################################
+# runtime stages
+################################################################################
+
+FROM alpine:3.12 AS websh_server_runtime
+COPY --from=websh_server_builder /work/bin/websh_server /usr/local/bin/
+ENTRYPOINT ["/usr/local/bin/websh_server"]
+
+FROM alpine:3.12 AS websh_remover_runtime
+COPY --from=websh_remover_builder /work/bin/websh_remover /usr/local/bin/
+ENTRYPOINT ["/usr/local/bin/websh_remover"]
diff --git a/README.rst b/README.rst
index 6b3784b..31a7675 100644
--- a/README.rst
+++ b/README.rst
@@ -134,30 +134,25 @@ APIサーバはコンテナの破棄のトリガーを生成するのみに留
 Path                    Description
 =====================   ========================================
 docs                    READMEの画像ファイルなど
-proxy                   ローカル開発用のnginxの設定
-websh_front             フロントエンドのソースコード
-websh_server            バックエンドのソースコード
+nginx                   ローカル開発用のnginxの設定
+websh_front             フロントエンドのプログラム
+websh_server            バックエンドのAPIサーバのプログラム
+websh_remover           バックエンドの後始末を行うプログラム
 config.nims             タスク定義
-Dockerfile              ローカル開発でのみ使用する
+Dockerfile              アプリのDockerイメージ
 docker-compose.yml      ローカル開発でのみ使用する開発環境設定
-docker-compose-ci.yml   GitHub Actionsでのみ使用する
 =====================   ========================================
 
 
 開発環境の起動方法
 ------------------
 
-リポジトリのルート直下の `config.nims` にリポジトリ内で使用するタスクを定義して
-いる。
 以下のコマンドをリポジトリディレクトリ配下で実行する。
 
 .. code-block:: shell
 
-   # 最初の一度、あるいはDockerイメージを更新したいときだけ実行
-   nim --hints:off pullShellgeiBotImage
-
-   # 開発環境の起動
-   nim --hints:off run
+   docker-compose build
+   docker-compose up
 
 サーバを起動して待機状態になったら、ブラウザで以下のページにアクセスする。
 
diff --git a/build/compiler_devel/Dockerfile b/build/compiler_devel/Dockerfile
new file mode 100644
index 0000000..82a3abe
--- /dev/null
+++ b/build/compiler_devel/Dockerfile
@@ -0,0 +1,24 @@
+FROM ubuntu:19.10
+
+RUN apt-get update -yqq && \
+    apt-get install -yqq --no-install-recommends \
+            build-essential \
+            ca-certificates \
+            git \
+            && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN git clone --depth 1 https://github.com/nim-lang/Nim && \
+    cd Nim && \
+    bash build_all.sh
+
+ENV PATH $PWD/Nim/bin:$PATH
+
+RUN nimble install -Y \
+           jester \
+           karax \
+           regex \
+           ;
+
+RUN nim --version && \
+    nimble --version
diff --git a/build/compiler_stable/Dockerfile b/build/compiler_stable/Dockerfile
new file mode 100644
index 0000000..5814d94
--- /dev/null
+++ b/build/compiler_stable/Dockerfile
@@ -0,0 +1,10 @@
+FROM nimlang/nim:1.0.6-ubuntu
+
+RUN nimble install -Y \
+           jester \
+           karax \
+           regex \
+           ;
+
+RUN nim --version && \
+    nimble --version
diff --git a/build/executor/Dockerfile b/build/executor/Dockerfile
new file mode 100644
index 0000000..5e11bf7
--- /dev/null
+++ b/build/executor/Dockerfile
@@ -0,0 +1,35 @@
+FROM docker:19.03-dind AS base
+
+# Let's start with some basic stuff.
+RUN apk add --no-cache alpine-sdk
+RUN mkdir -p /nim && \
+    curl -sL "http://nim-lang.org/download/nim-1.0.6.tar.xz" | tar xJ --strip-components=1 -C /nim && \
+    cd /nim && \
+    sh build.sh && \
+    rm -r c_code tests
+
+ENV PATH=/nim/bin:/root/.nimble/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+
+WORKDIR /nim
+RUN nim c -d:release koch.nim && \
+    ./koch nimble
+
+RUN nim --version && \
+    nimble --version
+
+
+FROM base AS builder
+
+COPY nimbot_executor /work
+RUN cd /work && nimble install -Y
+
+
+FROM docker:19.03-dind AS runtime
+
+RUN apk add --update --no-cache tzdata && \
+    cp /usr/share/zoneinfo/Asia/Tokyo /etc/localtime && \
+    echo "Asia/Tokyo" > /etc/timezone && \
+    apk del tzdata
+
+COPY --from=builder /root/.nimble/bin/nimbot_executor /usr/local/bin/nimbot_executor
+ENTRYPOINT ["/usr/local/bin/nimbot_executor"]
diff --git a/build/fluentd/Dockerfile b/build/fluentd/Dockerfile
new file mode 100644
index 0000000..5142a0e
--- /dev/null
+++ b/build/fluentd/Dockerfile
@@ -0,0 +1,5 @@
+FROM fluentd:v1.9-1 AS runtime
+
+USER root
+RUN mkdir /var/log/nimbot
+COPY conf/fluentd /fluentd/etc
diff --git a/build/server/Dockerfile b/build/server/Dockerfile
new file mode 100644
index 0000000..0dfbe1a
--- /dev/null
+++ b/build/server/Dockerfile
@@ -0,0 +1,18 @@
+FROM nimlang/nim:1.0.6-ubuntu AS builder
+
+COPY nimbot_server /work
+RUN cd /work && nimble install -Y
+
+
+FROM nimlang/nim:1.0.6-ubuntu AS runtime
+
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update -yqq && \
+    apt-get install -y tzdata && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+ENV TZ=Asia/Tokyo
+
+COPY --from=builder /root/.nimble/bin/nimbot_server /usr/local/bin/nimbot_server
+ENTRYPOINT ["/usr/local/bin/nimbot_server"]
+
diff --git a/docker-compose-ci.yml b/docker-compose-ci.yml
deleted file mode 100644
index 06bee30..0000000
--- a/docker-compose-ci.yml
+++ /dev/null
@@ -1,23 +0,0 @@
-version: '3'
-
-services:
-  server:
-    image: jiro4989/websh:latest
-    volumes:
-      - "./websh_server:/work"
-    working_dir: /work
-    entrypoint: nimble
-    command:
-      - build
-      - -d:release
-      - -Y
-
-  front:
-    image: jiro4989/websh:latest
-    volumes:
-      - "./websh_front:/work"
-    working_dir: /work
-    entrypoint: nimble
-    command:
-      - build
-      - -Y
diff --git a/docker-compose.yml b/docker-compose.yml
index 4e24f61..c27a691 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,12 +1,44 @@
-version: '3'
+version: '3.7'
 
 services:
-  proxy:
+  nginx:
     image: nginx:1.17
     volumes:
-      - "./proxy/conf.d:/etc/nginx/conf.d:ro"
+      - "./nginx/conf.d:/etc/nginx/conf.d:ro"
       - "./websh_front/public:/var/www:ro"
     ports:
       - "80:80"
     network_mode: "host"
 
+  websh_front:
+    build: &app-build
+      context: .
+      dockerfile: Dockerfile
+      target: base
+    volumes:
+      - "./websh_front:/work"
+    entrypoint: nimble
+    command:
+      - build
+      - -Y
+      - -d:local
+
+  websh_server:
+    build: *app-build
+    volumes:
+      - "./websh_server:/work"
+    environment:
+      HOST_PWD: "$PWD/websh_server"
+    entrypoint: ./entrypoint.sh
+    ports:
+      - "5000:5000"
+    network_mode: "host"
+
+  websh_remover:
+    build: *app-build
+    volumes:
+      - "./websh_remover:/work"
+      - "./websh_server/tmp:/dirs"
+    entrypoint: ./entrypoint.sh
+    environment:
+      WEBSH_REMOVER_DIR: "/dirs"
diff --git a/proxy/conf.d/nginx.conf b/nginx/conf.d/nginx.conf
similarity index 97%
rename from proxy/conf.d/nginx.conf
rename to nginx/conf.d/nginx.conf
index 4230f37..056a70e 100644
--- a/proxy/conf.d/nginx.conf
+++ b/nginx/conf.d/nginx.conf
@@ -27,6 +27,8 @@ server {
             return 204;
         }
 
+        client_max_body_size 8m;
+
         add_header Access-Control-Allow-Origin '*' always;
         proxy_set_header X-Forwarded-for $remote_addr;
         proxy_set_header X-Real-IP $remote_addr;
diff --git a/websh_remover/entrypoint.sh b/websh_remover/entrypoint.sh
new file mode 100755
index 0000000..7b36d28
--- /dev/null
+++ b/websh_remover/entrypoint.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+set -eu
+
+nimble build -Y
+./bin/websh_remover
diff --git a/websh_server/src/websh_remover.nim b/websh_remover/src/websh_remover.nim
similarity index 73%
rename from websh_server/src/websh_remover.nim
rename to websh_remover/src/websh_remover.nim
index d01ed9f..cba3513 100644
--- a/websh_server/src/websh_remover.nim
+++ b/websh_remover/src/websh_remover.nim
@@ -1,8 +1,10 @@
 import os, json, times
 from strformat import `&`
 
-let
-  tmpDir = getCurrentDir() / "tmp"
+let tmpDir = getEnv("WEBSH_REMOVER_DIR")
+if tmpDir == "":
+  echo %*{"time": $now(), "level": "error", "msg": "'WEBSH_REMOVER_DIR' environment variables was not set", "nimVersion": NimVersion}
+  quit 1
 
 when isMainModule and not defined modeTest:
   echo %*{"time": $now(), "level": "info", "msg": "remover begin", "nimVersion": NimVersion}
diff --git a/websh_remover/websh_remover.nimble b/websh_remover/websh_remover.nimble
new file mode 100644
index 0000000..c602c09
--- /dev/null
+++ b/websh_remover/websh_remover.nimble
@@ -0,0 +1,14 @@
+# Package
+
+version       = "0.1.0"
+author        = "jiro4989"
+description   = "A new awesome nimble package"
+license       = "MIT"
+srcDir        = "src"
+bin           = @["websh_remover"]
+binDir        = "bin"
+
+
+# Dependencies
+
+requires "nim >= 1.2.0"
diff --git a/websh_server/entrypoint.sh b/websh_server/entrypoint.sh
new file mode 100755
index 0000000..dac0735
--- /dev/null
+++ b/websh_server/entrypoint.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+set -eu
+
+nimble build -Y
+./bin/websh_server
diff --git a/websh_server/src/dockerclient.nim b/websh_server/src/dockerclient.nim
index 07c5257..8c761ee 100644
--- a/websh_server/src/dockerclient.nim
+++ b/websh_server/src/dockerclient.nim
@@ -20,7 +20,7 @@ type
 proc newClient*(): DockerClient =
   let
     client = newHttpClient(timeout = 10 * 1000)
-    url = "http://localhost:2376"
+    url = "http://127.0.1.1:2376" # ホストのDockerAPI
   return DockerClient(client: client, url: url)
 
 proc createContainer*(self: DockerClient, name: string, image: string, cmds: seq[string], script = "", mediaDir = "", imageDir = ""): Response =
diff --git a/websh_server/src/websh_server.nim b/websh_server/src/websh_server.nim
index 911a36b..1487fbb 100644
--- a/websh_server/src/websh_server.nim
+++ b/websh_server/src/websh_server.nim
@@ -22,7 +22,6 @@ const
 
 proc getTmpDir(): string = getCurrentDir() / "tmp"
 
-
 proc getImages(dir: string): seq[ImageObj] =
   ## 画像ディレクトリから画像ファイルを取得。
   ## 取得の際はBase64エンコードした文字列として取得する。
@@ -64,6 +63,10 @@ router myrouter:
         imageDir = contDir / "images"
         mediaDir = contDir / "media"
         removeFlag = contDir / "removes"
+        hostContDir = getEnv("HOST_PWD") / "tmp" / uuid
+        hostScriptDir = hostContDir / "script"
+        hostImageDir = hostContDir / "images"
+        hostMediaDir = hostContDir / "media"
 
       createDir(imageDir)
 
@@ -71,6 +74,7 @@ router myrouter:
       createDir(scriptDir)
       let shellScriptPath = scriptDir/scriptName
       writeFile(shellScriptPath, respJson.code)
+      let hostShellScriptPath = hostScriptDir/scriptName
 
       # Mediaの配置
       createMediaFiles(mediaDir, respJson.images)
@@ -88,9 +92,9 @@ router myrouter:
           name = uuid,
           image = image,
           cmds = cmds,
-          script = shellScriptPath,
-          mediaDir = mediaDir,
-          imageDir = imageDir)
+          script = hostShellScriptPath,
+          mediaDir = hostMediaDir,
+          imageDir = hostImageDir)
 
       # TODO: ここ邪魔だなぁ
       case status
diff --git a/websh_server/tmp/.gitkeep b/websh_server/tmp/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/websh_server/tools/visor.nim b/websh_server/tools/visor.nim
deleted file mode 100644
index 38f6abb..0000000
--- a/websh_server/tools/visor.nim
+++ /dev/null
@@ -1,8 +0,0 @@
-import os, osproc, strutils, sequtils
-
-while true:
-  for i in 1..4:
-    let s = execProcess("docker-compose", args = ["ps"], options = {poUsePath})
-    for name in s.split("\n").filterIt("Exit" in it).mapIt(it.split(" ")[0]):
-      discard execShellCmd("docker-compose up -d " & name)
-  sleep 500
diff --git a/websh_server/websh_server.nimble b/websh_server/websh_server.nimble
index da1bcad..0043e5e 100644
--- a/websh_server/websh_server.nimble
+++ b/websh_server/websh_server.nimble
@@ -5,7 +5,7 @@ author        = "jiro4989"
 description   = "A new awesome nimble package"
 license       = "MIT"
 srcDir        = "src"
-bin           = @["websh_server", "websh_remover"]
+bin           = @["websh_server"]
 binDir        = "bin"