From b0259b559249c979698b9f59891399920bf81070 Mon Sep 17 00:00:00 2001
From: c0derMo <jaydeveloper@outlook.de>
Date: Thu, 13 Jan 2022 16:17:07 +0000
Subject: [PATCH] Added docker container monitor

---
 db/patch-add-docker-columns.sql | 10 ++++++++++
 server/database.js              |  1 +
 server/model/monitor.js         | 23 +++++++++++++++++++++++
 src/pages/EditMonitor.vue       | 19 +++++++++++++++++++
 4 files changed, 53 insertions(+)
 create mode 100644 db/patch-add-docker-columns.sql

diff --git a/db/patch-add-docker-columns.sql b/db/patch-add-docker-columns.sql
new file mode 100644
index 00000000..fdde4170
--- /dev/null
+++ b/db/patch-add-docker-columns.sql
@@ -0,0 +1,10 @@
+-- You should not modify if this have pushed to Github, unless it does serious wrong with the db.
+BEGIN TRANSACTION;
+
+ALTER TABLE monitor
+	ADD docker_daemon VARCHAR(255);
+
+ALTER TABLE monitor
+	ADD docker_container VARCHAR(255);
+
+COMMIT;
diff --git a/server/database.js b/server/database.js
index afcace70..536acd19 100644
--- a/server/database.js
+++ b/server/database.js
@@ -53,6 +53,7 @@ class Database {
         "patch-2fa-invalidate-used-token.sql": true,
         "patch-notification_sent_history.sql": true,
         "patch-monitor-basic-auth.sql": true,
+        "patch-add-docker-columns.sql": true
     }
 
     /**
diff --git a/server/model/monitor.js b/server/model/monitor.js
index c4441d63..5683352f 100644
--- a/server/model/monitor.js
+++ b/server/model/monitor.js
@@ -77,6 +77,8 @@ class Monitor extends BeanModel {
             dns_resolve_server: this.dns_resolve_server,
             dns_last_result: this.dns_last_result,
             pushToken: this.pushToken,
+            docker_container: this.docker_container,
+            docker_daemon: this.docker_daemon,
             notificationIDList,
             tags: tags,
         };
@@ -347,6 +349,27 @@ class Monitor extends BeanModel {
                         throw new Error("Server not found on Steam");
                     }
 
+                } else if (this.type === "docker") {
+                    debug(`[${this.name}] Prepare Options for axios`);
+
+                    const options = {
+                        url: `/containers/${this.docker_container}/json`,
+                        headers: {
+                            "Accept": "*/*",
+                            "User-Agent": "Uptime-Kuma/" + version,
+                        },
+                        socketPath: this.docker_daemon,
+                        httpsAgent: new https.Agent({
+                            maxCachedSessions: 0,      // Use Custom agent to disable session reuse (https://github.com/nodejs/node/issues/3940)
+                            rejectUnauthorized: ! this.getIgnoreTls(),
+                        }),
+                    };
+
+                    debug(`[${this.name}] Axios Request`);
+                    let res = await axios.request(options);
+                    if (res.data.State.Running) {
+                        bean.status = UP;
+                    }
                 } else {
                     bean.msg = "Unknown Monitor Type";
                     bean.status = PENDING;
diff --git a/src/pages/EditMonitor.vue b/src/pages/EditMonitor.vue
index 4b6a920c..8b02a75f 100644
--- a/src/pages/EditMonitor.vue
+++ b/src/pages/EditMonitor.vue
@@ -32,6 +32,9 @@
                                     <option value="steam">
                                         Steam Game Server
                                     </option>
+                                    <option value="docker">
+                                        Docker Container
+                                    </option>
                                 </select>
                             </div>
 
@@ -115,6 +118,20 @@
                                 </div>
                             </template>
 
+                            <!-- Docker Container Name / ID -->
+                            <!-- For Docker Type -->
+                            <div v-if="monitor.type === 'docker'" class="my-3">
+                                <label for="docker_container" class="form-label">{{ $t("Container Name / ID") }}</label>
+                                <input id="docker_container" v-model="monitor.docker_container" type="text" class="form-control" required>
+                            </div>
+
+                            <!-- Docker Daemon -->
+                            <!-- For Docker Type -->
+                            <div v-if="monitor.type === 'docker'" class="my-3">
+                                <label for="docker_daemon" class="form-label">{{ $t("Docker Daemon") }}</label>
+                                <input id="docker_daemon" v-model="monitor.docker_daemon" type="text" class="form-control" required>
+                            </div>
+
                             <!-- Interval -->
                             <div class="my-3">
                                 <label for="interval" class="form-label">{{ $t("Heartbeat Interval") }} ({{ $t("checkEverySecond", [ monitor.interval ]) }})</label>
@@ -439,6 +456,8 @@ export default {
                     accepted_statuscodes: ["200-299"],
                     dns_resolve_type: "A",
                     dns_resolve_server: "1.1.1.1",
+                    docker_container: "",
+                    docker_daemon: "/var/run/docker.sock"
                 };
 
                 for (let i = 0; i < this.$root.notificationList.length; i++) {