v14.6.4

.versionbot/CHANGELOG.yml

@@ -1,3 +1,44 @@
+- commits:
+    - subject: Add SIGTERM listener on application start
+      hash: 6683bca07da0e6b8f822dfcb22211b24a182dc16
+      body: >
+        As reported by issue #2100, the supervisor was not correctly reacting to
+
+        `SIGTERM` sent by the engine when terminating the process (for instance
+
+        before a reboot). This would lead to the supervisor requiring an
+
+        additional 10 seconds to terminate (after which the engine will send a
+
+        `SIGKILL`).
+
+
+        The reason for this is explained by the following info coming from Node
+
+
+        > Node.js was not designed to run as PID 1 which leads to unexpected behaviour when running inside of Docker. For example, a Node.js process running as PID 1 will not respond to `SIGINT` (`CTRL-C`) and similar signals. [reference](https://github.com/nodejs/docker-node/blob/main/docs/BestPractices.md#handling-kernel-signals)
+
+
+        On internal testing, it was discovered that simply adding a listener for
+
+        the signal on the Node process was enough to handle the signal, even
+
+        when the process runs as PID 1.
+
+
+        This adds a listener for `SIGTERM` before starting the supervisor main
+
+        loop.
+      footer:
+        Closes: "#2100"
+        closes: "#2100"
+        Change-type: patch
+        change-type: patch
+      author: Felipe Lalanne
+      nested: []
+  version: 14.6.4
+  title: ""
+  date: 2023-01-31T19:43:26.722Z
 - commits:
     - subject: Update deploy-to-balena action to 0.26.0
       hash: 2bd2879cc580cd5b6a7cba73bc10d8ba55a3cf4c

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file
 automatically by Versionist. DO NOT EDIT THIS FILE MANUALLY!
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+# v14.6.4
+## (2023-01-31)
+
+* Add SIGTERM listener on application start [Felipe Lalanne]
+
 # v14.6.3
 ## (2023-01-30)
 

VERSION

@@ -1 +1 @@
-14.6.3
+14.6.4

balena.yml

@@ -2,6 +2,6 @@ name: balena-supervisor
 description: 'Balena Supervisor: balena''s agent on devices.'
 joinable: false
 type: sw.application
-version: 14.6.3
+version: 14.6.4
 provides:
   - slug: sw.compose.long-volume-syntax

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "balena-supervisor",
-  "version": "14.6.3",
+  "version": "14.6.4",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "balena-supervisor",
-      "version": "14.6.3",
+      "version": "14.6.4",
       "license": "Apache-2.0",
       "dependencies": {
         "@balena/happy-eyeballs": "0.0.6",

package.json

@@ -1,7 +1,7 @@
 {
   "name": "balena-supervisor",
   "description": "This is balena's Supervisor, a program that runs on IoT devices and has the task of running user Apps (which are Docker containers), and updating them as the balena API informs it to.",
-  "version": "14.6.3",
+  "version": "14.6.4",
   "license": "Apache-2.0",
   "repository": {
     "type": "git",
@@ -146,6 +146,6 @@
     }
   },
   "versionist": {
-    "publishedAt": "2023-01-30T18:59:38.829Z"
+    "publishedAt": "2023-01-31T19:43:27.427Z"
   }
 }