Update alpine Docker tag to v3.21.2

When Renovate acts too quickly, weirdness can occur, especially when more core packages like Alpine are updated - things haven't had time to propogate if we start updating less than an hour after the release. Waiting 7 days should give plenty of time for other maintainers to update their packages and for things to distribute.

Reviewed-on: #31

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.20.0 as base
+FROM alpine:3.21.2 as base
 ARG TARGETARCH
 
 FROM base AS base-amd64
@@ -9,7 +9,7 @@ ENV S6_OVERLAY_ARCH=aarch64
 
 FROM base-${TARGETARCH}${TARGETVARIANT}
 
-ARG S6_OVERLAY_VERSION="3.1.6.2"
+ARG S6_OVERLAY_VERSION="3.2.0.2"
 
 # Core variables
 ENV PUID=1000

renovate.json

@@ -4,6 +4,7 @@
     "major": {
         "dependencyDashboardApproval": true
     },
+    "minimumReleaseAge": "7 days",
     "customManagers": [
         {
         "customType": "regex",

requirements.txt

@@ -1,5 +1,5 @@
 # For pinning Python packages to then be parsed by Renovate
 
-certbot ==2.10.0
+certbot ==2.11.0
-certbot-dns-cloudflare ==2.10.0
+certbot-dns-cloudflare ==2.11.0
-apprise ==1.8.0
+apprise ==1.9.1

root/check-one-shot.sh

@@ -4,6 +4,7 @@
 if [ $ONE_SHOT == "true" ]; then
 
     # Cleanly kill container by sending kill signal to supervisor process
-    kill 1
+    echo 0 > /run/s6-linux-init-container-results/exitcode
+    /run/s6/basedir/bin/halt
 
 fi

root/etc/s6-overlay/s6-rc.d/cron/finish

@@ -1 +1,9 @@
-echo "$e" > /run/s6-linux-init-container-results/exitcode
+#!/command/with-contenv bash
+# shellcheck shell=bash
+
+if [ $ONE_SHOT == "false" ]; then
+
+    # Export exit code if not a ONE_SHOT
+    echo "$e" > /run/s6-linux-init-container-results/exitcode
+
+fi

root/etc/s6-overlay/s6-rc.d/logs/finish

@@ -1 +1,9 @@
-echo "$e" > /run/s6-linux-init-container-results/exitcode
+#!/command/with-contenv bash
+# shellcheck shell=bash
+
+if [ $ONE_SHOT == "false" ]; then
+
+    # Export exit code if not a ONE_SHOT
+    echo "$e" > /run/s6-linux-init-container-results/exitcode
+
+fi