Implement server start-stop logic, fix issues

- Fixed the volume being at /mcserver on host using the .env file
2022-07-04 00:00:04 +02:00 · 2022-07-04 00:00:04 +02:00 · 3d81bd3700
parent 453720ddde
commit 3d81bd3700
10 changed files with 464 additions and 25 deletions
--- a/.docker/docker-compose.server.yml
+++ b/.docker/docker-compose.server.yml
@ -9,7 +9,7 @@ services:
      - MC_SERVER=server1
    image: dockermc-server
    networks:
-      default:
+      dockermc:
        aliases:
          - server1
    container_name: mc-server1
@ -23,15 +23,15 @@ services:
      - MC_SERVER=server2
    image: dockermc-server
    networks:
-      default:
+      dockermc:
        aliases:
          - server2
    container_name: mc-server2
 volumes:
  dockermc:
    name: dockermc
-    driver: local
-    driver_opts:
-      type: none
-      o: bind
-      device: ../mcserver
+    external: true # Created by the outer Compose file
+networks:
+  dockermc:
+    name: dockermc
+    driver: bridge
--- a/.docker/docker-compose.yml
+++ b/.docker/docker-compose.yml
@ -16,6 +16,10 @@ services:
      - ./docker-compose.server.yml:/docker-compose.server.yml
      - /var/run/docker.sock:/var/run/docker.sock
    container_name: dockermc-runner
+    networks:
+      dockermc:
+        aliases:
+          - runner
 volumes:
  dockermc:
    name: dockermc
@ -23,4 +27,8 @@ volumes:
    driver_opts:
      type: none
      o: bind
-      device: ../mcserver
+      device: $PWD/mcserver
+networks:
+  dockermc:
+    name: dockermc
+    driver: bridge
--- a/.docker/mcserver/.gitkeep
+++ b/.docker/mcserver/.gitkeep
--- a/.docker/runner/Dockerfile
+++ b/.docker/runner/Dockerfile
@ -18,6 +18,8 @@ RUN apt-get update
 RUN apt-get install -y docker-ce docker-ce-cli containerd.io
 # Install Docker Compose
 RUN apt-get install -y docker-compose-plugin
+# Install wait-for-it
+RUN apt-get install -y wait-for-it
 # Add user to Docker group so Docker commands can be used
 RUN groupadd -g $DGID hostDocker || :
 RUN usermod -aG $DGID node
--- a/.docker/server/start.sh
+++ b/.docker/server/start.sh
@ -1,9 +1,11 @@
 #for file in *.jar; do
 #  echo $file
 #done
+trap "echo Received stop signal; pkill java" INT TERM EXIT
 ls -la
 file=$(ls *.jar | tail -1)
 echo Starting $file
 mkdir -p $MC_SERVER
 cd $MC_SERVER
 java -jar ../$file
+echo Stopped!
--- a/.gitignore
+++ b/.gitignore
@ -1,3 +1,4 @@
 /src/dist/
 .idea
 node_modules
+.docker/mcserver
--- a/README.md
+++ b/README.md
@ -0,0 +1,8 @@
+# Docker MC
+
+## Usage
+```shell
+cd .docker
+source .env
+docker compose up --build
+```
--- a/src/index.ts
+++ b/src/index.ts
@ -1,6 +1,14 @@
 import fetch from 'node-fetch';
 import { promises } from 'fs';
-import { exec } from 'child_process';
+import { ChildProcess, exec, ExecException } from 'child_process';
+import * as chokidar from 'chokidar';
+
+const running: {
+    process: ChildProcess,
+    server1: boolean,
+    serverName: () => string,
+    prevServerName: () => string
+} = {process: null, server1: false, serverName: () => 'server' + (running.server1 ? '1' : '2'), prevServerName: () => 'server' + (running.server1 ? '2' : '1')};

 async function main() {
    console.log("Checking for server updates...", "MC", process.env.MC_VERSION);
@ -20,22 +28,52 @@ async function main() {
            console.log("Build downloaded", lastBuild.downloads.application.name);
        }
    }
-    console.log("Starting server");
-    exec('docker compose -f /docker-compose.server.yml up server1', function (error, stdout, stderr) {
-        if (stdout) {
-            console.log(stdout);
-        }
-        if (stderr) {
-            console.error(stderr);
-        }
-        if (error) {
-            console.error(error);
-        }
+    await startNextServer();
+    chokidar.watch(`/mcserver/${running.serverName()}/plugins/*.jar`).on('change', async () => { // TODO: Separate plugins dir
+        console.log("Plugin changes detected, restarting");
+        await startNextServer();
    });
-
 }

-// noinspection JSIgnoredPromiseFromCall
-main();
+async function startNextServer() {
+    running.server1 = !running.server1;
+    console.log("Starting server", running.server1 ? 'one' : 'two');
+    exec('docker compose -f /docker-compose.server.yml up -d '+running.serverName(), loggingCallback);
+    await waitForStartup();
+    await stopPrevServer();
+}
+
+async function stopPrevServer() {
+    console.log("Stopping previous server");
+    exec('docker compose -f /docker-compose.server.yml stop '+running.prevServerName(), loggingCallback);
+}
+
+function waitForStartup() {
+    console.log("Waiting for startup");
+    return new Promise<void>(function (resolve, reject) {
+        exec(`wait-for-it ${running.serverName()}:25565 -t 60`, loggingCallback).on('exit', function (code) {
+            if (code === 0) {
+                resolve();
+            } else {
+                console.log("Error while waiting for server to start. Possibly timed out (60s).");
+                reject(code);
+            }
+        });
+    })
+}
+
+function loggingCallback(error?: ExecException, stdout?: string, stderr?: string) {
+    if (stdout) {
+        console.log(stdout);
+    }
+    if (stderr) {
+        console.error(stderr);
+    }
+    if (error) {
+        console.error(error);
+    }
+}
+
+main().catch(reason => console.error('An error occurred while running DockerMC.', reason));

 type Build = { build: number, time: string, changes: { summary: string }[], downloads: { application: { name: string }, 'mojang-mappings': { name: string } } };
--- a/src/package-lock.json
+++ b/src/package-lock.json
@ -8,7 +8,9 @@
      "name": "docker-mc",
      "version": "1.0.0",
      "dependencies": {
-        "node-fetch": "^3.2.6"
+        "chokidar": "^3.5.3",
+        "node-fetch": "^3.2.6",
+        "read-last-lines": "^1.8.0"
      },
      "devDependencies": {
        "@types/node": "^18.0.0",
@ -32,12 +34,74 @@
        "node": ">=8"
      }
    },
+    "node_modules/any-promise": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/any-promise/-/any-promise-1.3.0.tgz",
+      "integrity": "sha512-7UvmKalWRt1wgjL1RrGxoSJW/0QZFIegpeGvZG9kjp8vrRu55XTHbwnqq2GpXm9uLbcuhxm3IqX9OB4MZR1b2A=="
+    },
+    "node_modules/anymatch": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.2.tgz",
+      "integrity": "sha512-P43ePfOAIupkguHUycrc4qJ9kz8ZiuOUijaETwX7THt0Y/GNK7v0aa8rY816xWjZ7rJdA5XdMcpVFTKMq+RvWg==",
+      "dependencies": {
+        "normalize-path": "^3.0.0",
+        "picomatch": "^2.0.4"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
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+    "node_modules/binary-extensions": {
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+      "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.2.0.tgz",
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+      "funding": [
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+          "url": "https://paulmillr.com/funding/"
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+        "braces": "~3.0.2",
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@ -103,6 +167,17 @@
        "node": "^12.20 || >= 14.13"
      }
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+    "node_modules/fill-range": {
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+      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
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@ -120,6 +195,68 @@
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@ -132,6 +269,16 @@
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@ -173,6 +320,22 @@
        "url": "https://opencollective.com/node-fetch"
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@ -191,6 +354,17 @@
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@ -206,6 +380,25 @@
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@ -288,12 +481,42 @@
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    },
+    "chokidar": {
+      "version": "3.5.3",
+      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.5.3.tgz",
+      "integrity": "sha512-Dr3sfKRP6oTcjf2JmUmFJfeVMvXBdegxB0iVQ5eb2V10uFJUCAS8OByZdVAyVb8xXNz3GjjTgj9kLWsZTqE6kw==",
+      "requires": {
+        "anymatch": "~3.1.2",
+        "braces": "~3.0.2",
+        "fsevents": "~2.3.2",
+        "glob-parent": "~5.1.2",
+        "is-binary-path": "~2.1.0",
+        "is-glob": "~4.0.1",
+        "normalize-path": "~3.0.0",
+        "readdirp": "~3.6.0"
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    "cross-spawn": {
      "version": "7.0.3",
      "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.3.tgz",
@ -418,6 +683,14 @@
        "web-streams-polyfill": "^3.0.3"
      }
    },
+    "fill-range": {
+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
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    "formdata-polyfill": {
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      "resolved": "https://registry.npmjs.org/formdata-polyfill/-/formdata-polyfill-4.0.10.tgz",
@ -432,6 +705,46 @@
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      "dev": true
    },
+    "fsevents": {
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+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz",
+      "integrity": "sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==",
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+    },
+    "glob-parent": {
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+      "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.2.tgz",
+      "integrity": "sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow==",
+      "requires": {
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+      }
+    },
+    "is-binary-path": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/is-binary-path/-/is-binary-path-2.1.0.tgz",
+      "integrity": "sha512-ZMERYes6pDydyuGidse7OsHxtbI7WVeUEozgR/g7rd0xUimYNlvZRE/K2MgZTjWy725IfelLeVcEM97mmtRGXw==",
+      "requires": {
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+      }
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+    "is-extglob": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
+      "integrity": "sha512-SbKbANkN603Vi4jEZv49LeVJMn4yGwsbzZworEoyEiutsN3nJYdbO36zfhGJ6QEDpOZIFkDtnq5JRxmvl3jsoQ=="
+    },
+    "is-glob": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-4.0.3.tgz",
+      "integrity": "sha512-xelSayHH36ZgE7ZWhli7pW34hNbNl8Ojv5KVmkJD4hBdD3th8Tfk9vYasLM+mXWOZhFkgZfxhLSnrwRr4elSSg==",
+      "requires": {
+        "is-extglob": "^2.1.1"
+      }
+    },
+    "is-number": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
+      "integrity": "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng=="
+    },
    "isexe": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
@ -444,6 +757,16 @@
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      "dev": true
    },
+    "mz": {
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/mz/-/mz-2.7.0.tgz",
+      "integrity": "sha512-z81GNO7nnYMEhrGh9LeymoE4+Yr0Wn5McHIZMK5cfQCl+NDX08sCZgUc9/6MHni9IWuFLm1Z3HTCXu2z9fN62Q==",
+      "requires": {
+        "any-promise": "^1.0.0",
+        "object-assign": "^4.0.1",
+        "thenify-all": "^1.0.0"
+      }
+    },
    "node-cleanup": {
      "version": "2.1.2",
      "resolved": "https://registry.npmjs.org/node-cleanup/-/node-cleanup-2.1.2.tgz",
@ -465,6 +788,16 @@
        "formdata-polyfill": "^4.0.10"
      }
    },
+    "normalize-path": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
+      "integrity": "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA=="
+    },
+    "object-assign": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
+      "integrity": "sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg=="
+    },
    "path-key": {
      "version": "3.1.1",
      "resolved": "https://registry.npmjs.org/path-key/-/path-key-3.1.1.tgz",
@ -480,6 +813,11 @@
        "through": "~2.3"
      }
    },
+    "picomatch": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.1.tgz",
+      "integrity": "sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA=="
+    },
    "ps-tree": {
      "version": "1.2.0",
      "resolved": "https://registry.npmjs.org/ps-tree/-/ps-tree-1.2.0.tgz",
@ -489,6 +827,22 @@
        "event-stream": "=3.3.4"
      }
    },
+    "read-last-lines": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/read-last-lines/-/read-last-lines-1.8.0.tgz",
+      "integrity": "sha512-oPL0cnZkhsO2xF7DBrdzVhXSNajPP5TzzCim/2IAjeGb17ArLLTRriI/ceV6Rook3L27mvbrOvLlf9xYYnaftQ==",
+      "requires": {
+        "mz": "^2.7.0"
+      }
+    },
+    "readdirp": {
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-3.6.0.tgz",
+      "integrity": "sha512-hOS089on8RduqdbhvQ5Z37A0ESjsqz6qnRcffsMU3495FuTdqSm+7bhJ29JvIOsBDEEnan5DPu9t3To9VRlMzA==",
+      "requires": {
+        "picomatch": "^2.2.1"
+      }
+    },
    "shebang-command": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
@ -553,12 +907,36 @@
        "ansi-regex": "^5.0.1"
      }
    },
+    "thenify": {
+      "version": "3.3.1",
+      "resolved": "https://registry.npmjs.org/thenify/-/thenify-3.3.1.tgz",
+      "integrity": "sha512-RVZSIV5IG10Hk3enotrhvz0T9em6cyHBLkH/YAZuKqd8hRkKhSfCGIcP2KUY0EPxndzANBmNllzWPwak+bheSw==",
+      "requires": {
+        "any-promise": "^1.0.0"
+      }
+    },
+    "thenify-all": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/thenify-all/-/thenify-all-1.6.0.tgz",
+      "integrity": "sha512-RNxQH/qI8/t3thXJDwcstUO4zeqo64+Uy/+sNVRBx4Xn2OX+OZ9oP+iJnNFqplFra2ZUVeKCSa2oVWi3T4uVmA==",
+      "requires": {
+        "thenify": ">= 3.1.0 < 4"
+      }
+    },
    "through": {
      "version": "2.3.8",
      "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
      "integrity": "sha512-w89qg7PI8wAdvX60bMDP+bFoD5Dvhm9oLheFp5O4a2QF0cSBGsBX4qZmadPMvVqlLJBBci+WqGGOAPvcDeNSVg==",
      "dev": true
    },
+    "to-regex-range": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
+      "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
+      "requires": {
+        "is-number": "^7.0.0"
+      }
+    },
    "tsc-watch": {
      "version": "5.0.3",
      "resolved": "https://registry.npmjs.org/tsc-watch/-/tsc-watch-5.0.3.tgz",
--- a/src/package.json
+++ b/src/package.json
@ -26,6 +26,8 @@
    "typescript": "^4.7.4"
  },
  "dependencies": {
-    "node-fetch": "^3.2.6"
+    "chokidar": "^3.5.3",
+    "node-fetch": "^3.2.6",
+    "read-last-lines": "^1.8.0"
  }
 }