From b8d6fe4533c57228b9630f4cd5d3b38b1c976b82 Mon Sep 17 00:00:00 2001
From: John Edwards <joedwards32@gmail.com>
Date: Sun, 5 Nov 2023 14:28:31 +0000
Subject: [PATCH] Added basic support for pre/post hooks

---
 README.md             | 11 +++++++++++
 bullseye/Dockerfile   |  2 ++
 bullseye/etc/entry.sh | 16 ++++++++++++++++
 bullseye/etc/post.sh  |  5 +++++
 bullseye/etc/pre.sh   |  5 +++++
 5 files changed, 39 insertions(+)
 create mode 100755 bullseye/etc/post.sh
 create mode 100755 bullseye/etc/pre.sh

diff --git a/README.md b/README.md
index 2d5d2cb..a4dfe1d 100644
--- a/README.md
+++ b/README.md
@@ -104,6 +104,17 @@ TV_MAXRATE=0                (Max CSTV spectator bandwidth rate allowed, 0 == unl
 TV_DELAY=0                  (CSTV broadcast delay in seconds)
 ```
 
+# Customizing this Container
+
+## Pre and Post Hooks
+
+The container includes two scripts for executing custom actions:
+
+* `/home/steam/cs2-dedicated/pre.sh` is executed before the CS2 server starts
+* `/home/steam/cs2-dedicated/post.sh` is executed after the CS2 server stops
+
+When using a persient volume mounted at `/home/steam/cs2-dedicated/` you may edit these scripts to perform custom actions, such as enabling metamod.
+
 # Credits
 
 This container leans heavily on the work of [CM2Walki](https://github.com/CM2Walki/), especially his [SteamCMD](https://github.com/CM2Walki/steamcmd) container image. GG!
diff --git a/bullseye/Dockerfile b/bullseye/Dockerfile
index 5716aab..759d4f8 100644
--- a/bullseye/Dockerfile
+++ b/bullseye/Dockerfile
@@ -18,6 +18,8 @@ ENV CFG_URL https://raw.githubusercontent.com/joedwards32/CS2/settings.tgz
 
 COPY etc/entry.sh "${HOMEDIR}/entry.sh"
 COPY etc/server.cfg "/etc/server.cfg"
+COPY etc/pre.sh "/etc/pre.sh"
+COPY etc/post.sh "/etc/post.sh"
 
 RUN set -x \
 	# Install, update & upgrade packages
diff --git a/bullseye/etc/entry.sh b/bullseye/etc/entry.sh
index cd2c14f..235c216 100644
--- a/bullseye/etc/entry.sh
+++ b/bullseye/etc/entry.sh
@@ -1,4 +1,6 @@
 #!/bin/bash
+
+# Create App Dir
 mkdir -p "${STEAMAPPDIR}" || true
 
 # Download Updates
@@ -27,6 +29,14 @@ sed -i -e "s/{{SERVER_HOSTNAME}}/${CS2_SERVERNAME}/g" \
        -e "s/{{TV_DELAY}}/${TV_DELAY}/g" \
        "${STEAMAPPDIR}"/game/csgo/cfg/server.cfg
 
+# Install hooks
+if [[ ! -f "${STEAMAPPDIR}/pre.sh" ]] ; then
+    cp /etc/pre.sh "${STEAMAPPDIR}/pre.sh"
+fi
+if [[ ! -f "${STEAMAPPDIR}/post.sh" ]] ; then
+    cp /etc/post.sh "${STEAMAPPDIR}/post.sh"
+fi
+
 # Rewrite Config Files
 
 if [[ ! -z $CS2_BOT_DIFFICULTY ]] ; then
@@ -42,6 +52,9 @@ fi
 # Switch to server directory
 cd "${STEAMAPPDIR}/game/bin/linuxsteamrt64"
 
+# Pre Hook
+bash "${STEAMAPPDIR}/pre.sh"
+
 # Construct server arguments
 
 if [[ -z $CS2_GAMEALIAS ]]; then
@@ -70,3 +83,6 @@ eval "./cs2" -dedicated \
         +rcon_password "${CS2_RCONPW}" \
         +sv_password "${CS2_PW}" \
         "${CS2_ADDITIONAL_ARGS}"
+
+# Post Hook
+bash "${STEAMAPPDIR}/post.sh"
diff --git a/bullseye/etc/post.sh b/bullseye/etc/post.sh
new file mode 100755
index 0000000..9256adf
--- /dev/null
+++ b/bullseye/etc/post.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+# POST HOOK
+#  Make your customisation here
+echo "post-hook: noop"
diff --git a/bullseye/etc/pre.sh b/bullseye/etc/pre.sh
new file mode 100755
index 0000000..eb0fb9a
--- /dev/null
+++ b/bullseye/etc/pre.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+# PRE HOOK
+#  Make your customisation here
+echo "pre-hook: noop"