Upgrade to alpine 3.3 and squad 3.5.15-r1.

Dockerfile

@@ -1,9 +1,9 @@
-FROM alpine:3.2
+FROM alpine:3.3
 
-MAINTAINER chrisdaish@gmail.com
+MAINTAINER simon.perkins@gmail.com
 
 RUN apk update \
-    && apk add squid=3.5.4-r2 \
+    && apk add squid=3.5.15-r1 \
     && apk add curl \
     && rm -rf /var/cache/apk/*
 

configFiles/squid.conf

@@ -64,10 +64,54 @@ http_port 3128
 # Leave coredumps in the first cache dir
 coredump_dir /var/cache/squid
 
-#
-# Add any of your own refresh_pattern entries above these.
-#
-refresh_pattern ^ftp:		1440	20%	10080
-refresh_pattern ^gopher:	1440	0%	1440
-refresh_pattern -i (/cgi-bin/|\?) 0	0%	0
-refresh_pattern .		0	20%	4320
+# Everything up until refresh_all_ims taken from
+# https://tails.boum.org/contribute/build/squid-deb-proxy/squid-deb-proxy.conf
+cache_replacement_policy heap LFUDA
+
+# refresh patterns
+refresh_pattern ^ftp:          1440    20%     10080
+refresh_pattern ^gopher:       1440    0%      1440
+refresh_pattern deb$           129600 100%     129600
+refresh_pattern udeb$          129600 100%     129600
+refresh_pattern tar.gz$        129600 100%     129600
+refresh_pattern DiffIndex$      0       20%     4320 refresh-ims
+refresh_pattern PackagesIndex$  0       20%     4320 refresh-ims
+refresh_pattern Packages\.bz2$  0       20%     4320 refresh-ims
+refresh_pattern Packages\.gz$   0       20%     4320 refresh-ims
+refresh_pattern Packages\.lzma$ 0       20%     4320 refresh-ims
+refresh_pattern SourcesIndex$   0       20%     4320 refresh-ims
+refresh_pattern Sources\.bz2$   0       20%     4320 refresh-ims
+refresh_pattern Sources\.gz$    0       20%     4320 refresh-ims
+refresh_pattern Sources\.lzma$  0       20%     4320 refresh-ims
+refresh_pattern Release$        0       20%     4320 refresh-ims
+refresh_pattern Release\.gpg$   0       20%     4320 refresh-ims
+refresh_pattern Translation-en\.bzip2$ 0       20%     4320 refresh-ims
+refresh_pattern Translation-en\.bz2$   0       20%     4320 refresh-ims
+refresh_pattern Translation-en\.gz$    0       20%     4320 refresh-ims
+refresh_pattern Translation-en\.lzma$  0       20%     4320 refresh-ims
+refresh_pattern Translation-fr\.bzip2$ 0       20%     4320 refresh-ims
+refresh_pattern Translation-fr\.bz2$   0       20%     4320 refresh-ims
+refresh_pattern Translation-fr\.gz$    0       20%     4320 refresh-ims
+refresh_pattern Translation-fr\.lzma$  0       20%     4320 refresh-ims
+refresh_pattern .               0       20%     4320
+
+# handle meta-release and changelogs.ubuntu.com special
+refresh_pattern changelogs.ubuntu.com/*  0  1% 1
+
+# see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=499379
+refresh_all_ims on
+
+cache_effective_user squid
+cache_effective_group squid
+
+# Based on the following web page
+# http://flavioleitner.blogspot.co.za/2014/03/squid-is-not-caching-files-with-size.html
+# cache_dir needs to be placed after all the other directives otherwise
+# they don't get applied
+cache_mem 32 MB
+maximum_object_size_in_memory 64 KB
+maximum_object_size 4 GB
+minimum_object_size 0 KB
+cache_swap_low 90
+cache_swap_high 95
+cache_dir ufs /var/cache/squid 16384 16 256

docker-compose.yml

@@ -0,0 +1,10 @@
+squid:
+  image: sperkins/squid:3.5.15-r1
+  ports:
+    - "3128:3128"
+  volumes:
+    - ./configFiles/squid.conf:/etc/squid/squid.conf:ro
+    - /srv/docker/squid/cache:/var/cache/squid:rw
+    - /srv/docker/squid/log:/var/log/squid:rw
+    - /etc/localtime:/etc/localtime:ro
+  restart: always

start-squid.sh

@@ -5,9 +5,13 @@ set -e
 CHOWN=$(/usr/bin/which chown)
 SQUID=$(/usr/bin/which squid)
 
+# Ensure that the squid spool directory exists
+mkdir -p /var/spool/squid
+
 # Ensure permissions are set correctly on the Squid cache + log dir.
 "$CHOWN" -R squid:squid /var/cache/squid
 "$CHOWN" -R squid:squid /var/log/squid
+"$CHOWN" -R squid:squid /var/spool/squid
 
 # Prepare the cache using Squid.
 echo "Initializing cache..."