From 749de829d5bad6a05ebe1a733a6bd942c1a386ec Mon Sep 17 00:00:00 2001
From: Ivan Gabaldon <igabaldon@inetol.net>
Date: Fri, 16 May 2025 11:16:41 +0200
Subject: [mod] container: refactor entrypoint script

That entrypoint is prone to screw things up, especially with permission handling. The new script handles initialization better and fixes some issues like delayed settings update via ENVs and timestamp overwriting, also adjusts what should be copied into the container.

Related https://github.com/searxng/searxng/pull/4721#issuecomment-2850272129
---
 container/entrypoint.sh | 166 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 166 insertions(+)
 create mode 100755 container/entrypoint.sh

(limited to 'container/entrypoint.sh')

diff --git a/container/entrypoint.sh b/container/entrypoint.sh
new file mode 100755
index 000000000..775fc8a2a
--- /dev/null
+++ b/container/entrypoint.sh
@@ -0,0 +1,166 @@
+#!/bin/sh
+# shellcheck shell=dash
+set -eu
+
+check_file() {
+    local target="$1"
+
+    if [ ! -f "$target" ]; then
+        cat <<EOF
+!!!
+!!! ERROR
+!!! "$target" is not a valid file, exiting...
+!!!
+EOF
+        exit 127
+    fi
+}
+
+check_directory() {
+    local target="$1"
+
+    if [ ! -d "$target" ]; then
+        cat <<EOF
+!!!
+!!! ERROR
+!!! "$target" is not a valid directory, exiting...
+!!!
+EOF
+        exit 127
+    fi
+}
+
+setup_ownership() {
+    local target="$1"
+    local type="$2"
+
+    case "$type" in
+    file | directory) ;;
+    *)
+        cat <<EOF
+!!!
+!!! ERROR
+!!! "$type" is not a valid type, exiting...
+!!!
+EOF
+        exit 1
+        ;;
+    esac
+
+    if [ "$(stat -c %U:%G "$target")" != "searxng:searxng" ]; then
+        if [ "$(id -u)" -eq 0 ]; then
+            chown -R searxng:searxng "$target"
+        else
+            cat <<EOF
+!!!
+!!! WARNING
+!!! "$target" $type is not owned by "searxng"
+!!! This may cause issues when running SearXNG
+!!!
+!!! Run the container as root to fix this issue automatically
+!!! Alternatively, you can chown the $type manually:
+!!! $ chown -R searxng:searxng "$target"
+!!!
+EOF
+        fi
+    fi
+}
+
+# Apply envs to uwsgi.ini
+setup_uwsgi() {
+    local timestamp
+
+    timestamp=$(stat -c %Y "$UWSGI_SETTINGS_PATH")
+
+    sed -i \
+        -e "s|workers = .*|workers = ${UWSGI_WORKERS:-%k}|g" \
+        -e "s|threads = .*|threads = ${UWSGI_THREADS:-4}|g" \
+        "$UWSGI_SETTINGS_PATH"
+
+    # Restore timestamp
+    touch -c -d "@$timestamp" "$UWSGI_SETTINGS_PATH"
+}
+
+# Apply envs to settings.yml
+setup_searxng() {
+    local timestamp
+
+    timestamp=$(stat -c %Y "$SEARXNG_SETTINGS_PATH")
+
+    # Ensure trailing slash in BASE_URL
+    # https://www.gnu.org/savannah-checkouts/gnu/bash/manual/bash.html#Shell-Parameter-Expansion
+    export BASE_URL="${BASE_URL%/}/"
+
+    sed -i \
+        -e "s|base_url: false|base_url: ${BASE_URL:-false}|g" \
+        -e "s/instance_name: \"SearXNG\"/instance_name: \"${INSTANCE_NAME:-SearXNG}\"/g" \
+        -e "s/autocomplete: \"\"/autocomplete: \"${AUTOCOMPLETE:-}\"/g" \
+        -e "s/ultrasecretkey/$(head -c 24 /dev/urandom | base64 | tr -dc 'a-zA-Z0-9')/g" \
+        "$SEARXNG_SETTINGS_PATH"
+
+    # Restore timestamp
+    touch -c -d "@$timestamp" "$SEARXNG_SETTINGS_PATH"
+}
+
+# Handle volume mounts
+volume_handler() {
+    local target="$1"
+
+    # Check if it's a valid directory
+    check_directory "$target"
+    setup_ownership "$target" "directory"
+}
+
+# Handle configuration file updates
+config_handler() {
+    local target="$1"
+    local template="$2"
+    local new_template_target="$target.new"
+
+    # Create/Update the configuration file
+    if [ -f "$target" ]; then
+        setup_ownership "$target" "file"
+
+        if [ "$template" -nt "$target" ]; then
+            cp -pfT "$template" "$new_template_target"
+
+            cat <<EOF
+...
+... INFORMATION
+... Update available for "$target"
+... It is recommended to update the configuration file to ensure proper functionality
+...
+... New version placed at "$new_template_target"
+... Please review and merge changes
+...
+EOF
+        fi
+    else
+        cat <<EOF
+...
+... INFORMATION
+... "$target" does not exist, creating from template...
+...
+EOF
+        cp -pfT "$template" "$target"
+    fi
+
+    # Check if it's a valid file
+    check_file "$target"
+}
+
+echo "SearXNG $SEARXNG_VERSION"
+
+# Check for volume mounts
+volume_handler "$CONFIG_PATH"
+volume_handler "$DATA_PATH"
+
+# Check for updates in files
+config_handler "$UWSGI_SETTINGS_PATH" "/usr/local/searxng/.template/uwsgi.ini"
+config_handler "$SEARXNG_SETTINGS_PATH" "/usr/local/searxng/searx/settings.yml"
+
+# Update files
+setup_uwsgi
+setup_searxng
+
+exec /usr/local/searxng/venv/bin/uwsgi --http-socket "$BIND_ADDRESS" "$UWSGI_SETTINGS_PATH"
-- 
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