Try to fix timeline. Add auto-certbot.

1 files changed, 62 insertions, 0 deletions

diff --git a/docker/auto-certbot/daemon.bash b/docker/auto-certbot/daemon.bash
index e69de29..8927c4a 100644..100755
--- a/docker/auto-certbot/daemon.bash
+++ b/docker/auto-certbot/daemon.bash
@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+
+# Check I'm root.
+if [[ $EUID -ne 0 ]]; then
+    echo "This script must be run as root" 1>&2
+    exit 1
+fi
+
+# Check CRUPEST_CERTBOT_RENEW_COMMAND is defined.
+if [ -z "$CRUPEST_CERTBOT_RENEW_COMMAND" ]; then
+    echo "CRUPEST_CERTBOT_RENEW_COMMAND must be defined."
+    exit 1
+fi
+
+# Check CRUPEST_CERT_PATH, default to /etc/letsencrypt/live/$CRUPEST_DOMAIN/fullchain.pem
+if [ -z "$CRUPEST_CERT_PATH" ]; then
+    CRUPEST_CERT_PATH="/etc/letsencrypt/live/$CRUPEST_DOMAIN/fullchain.pem"
+fi
+
+function check_and_renew_cert() {
+    expire_info=$(openssl x509 -enddate -noout -in "$CRUPEST_CERT_PATH")
+    
+    # Get ssl certificate expire date.
+    expire_date=$(echo "$expire_info" | cut -d= -f2)
+
+    echo "SSL certificate expire date: $expire_date"
+
+    # Convert expire date to UNIX timestamp.
+    expire_timestamp="$(date -d "$expire_date" +%s)"
+
+    # Minus expire timestamp with 30 days in UNIX timestamp.
+    renew_timestamp="$((expire_timestamp - 2592000))"
+    echo "Renew SSL certificate at: $(date -d @$renew_timestamp)"
+
+    # Get rest time til renew.
+    rest_time="$((renew_timestamp - $(date +%s)))"
+    echo "Rest time til renew: $rest_time seconds"
+
+    # Do we have rest time?
+    if [ "$rest_time" -gt 0 ]; then
+        # Check CRUPEST_GREEDY_CHECK is defined.
+        if [ -z "$CRUPEST_GREEDY_CHECK" ]; then
+            # Sleep til renew.
+            echo "Sleeping til renew..."
+            sleep "$rest_time"
+        else
+            # Sleep 1 hour.
+            echo "Seems like CRUPEST_GREEDY_CHECK is defined, sleep 1 day and check again..."
+            sleep 86400
+        fi
+    else
+        # No, renew now.
+        echo "Renewing now..."
+        # Run CRUPEST_CERTBOT_RENEW_COMMAND
+        $CRUPEST_CERTBOT_RENEW_COMMAND
+    fi
+}
+
+# Run check_and_renew_cert in infinate loop.
+while true; do
+    check_and_renew_cert
+done