cache-domains: added game cache DNS config service
Signed-off-by: Gerard Ryan <G.M0N3Y.2503@gmail.com>
This commit is contained in:
Gerard Ryan
Yousong Zhou
parent
326b48d5c5
commit
6e8be5f42e
3 changed files with 124 additions and 0 deletions
52
utils/cache-domains/Makefile
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52
utils/cache-domains/Makefile
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include $(TOPDIR)/rules.mk
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PKG_NAME:=cache-domains
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PKG_VERSION:=1.0.0
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PKG_RELEASE:=1
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PKG_MAINTAINER:=Gerard Ryan <G.M0N3Y.2503@gmail.com>
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include $(INCLUDE_DIR)/package.mk
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define Package/cache-domains/default
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SECTION:=utils
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CATEGORY:=Utilities
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TITLE:=Game content cache DNS
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URL:=https://github.com/uklans/cache-domains
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DEPENDS:=+jq +bash +dnsmasq +ca-bundle
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endef
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define Package/cache-domains/description/default
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Service to dynamically configure the local DNS (dnsmasq) to redirect game content servers to a LAN cache.
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Definitive list dynamically obtained from https://github.com/uklans/cache-domains.
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endef
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define Package/cache-domains/install/default
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$(INSTALL_DIR) $(1)/etc/init.d
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$(INSTALL_BIN) ./files/cache-domains.init $(1)/etc/init.d/cache-domains
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endef
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Build/Compile=# Nothing to compile, just install the scripts
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define Package/cache-domains-openssl
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$(Package/cache-domains/default)
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TITLE += (openssl)
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DEPENDS += +libustream-openssl
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VARIANT:=openssl
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endef
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Package/cache-domains-openssl/description = $(Package/cache-domains/description/default)
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Package/cache-domains-openssl/install = $(Package/cache-domains/install/default)
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define Package/cache-domains-mbedtls
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$(Package/cache-domains/default)
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TITLE += (mbedtls)
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DEPENDS += +libustream-mbedtls
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VARIANT:=mbedtls
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DEFAULT_VARIANT:=1
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endef
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Package/cache-domains-mbedtls/description = $(Package/cache-domains/description/default)
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Package/cache-domains-mbedtls/install = $(Package/cache-domains/install/default)
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$(eval $(call BuildPackage,cache-domains-openssl))
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$(eval $(call BuildPackage,cache-domains-mbedtls))
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30
utils/cache-domains/README.md
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utils/cache-domains/README.md
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# cache-domains
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Service to dynamically configure the local DNS (dnsmasq) to redirect game content servers to a LAN cache. Definitive list dynamically obtained from https://github.com/uklans/cache-domains.
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## Configuration
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Configuration file follows the same [syntax as the upsteam file](https://github.com/uklans/cache-domains/blob/master/scripts/config.example.json). The key for each `cache_domain` member matches the name of one of the `.txt` files in the [upstream root directory](https://github.com/uklans/cache-domains/blob/master/), except for the `default` key which matches the all the unreferenced `.txt` files. The value of each `cache_domain` member maps to one of the keys of the `ips` members, Thus mapping a cached domain to a list of IP addresses/LAN cache server.
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```json
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{
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"ips": {
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"server1": ["10.10.3.10", "10.10.3.11"],
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"server2": "10.10.3.12",
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"server3": "10.10.3.13"
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},
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"cache_domains": {
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"default": "server2",
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"blizzard": "server1",
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"origin": "server1",
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"steam": "server1",
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"wsus": "server3",
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"xboxlive": "server3"
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}
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}
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```
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## Startup/Shutdown
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On start the local DNS (dnsmasq) will be configured to redirect the configured cache domains and on stop the redirection will be removed.
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## Testing
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With the above configuration set and the service running `nslookup swcdn.apple.com` would return `10.10.3.12`
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42
utils/cache-domains/files/cache-domains.init
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42
utils/cache-domains/files/cache-domains.init
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#!/bin/sh /etc/rc.common
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START=24
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SERVICE_NAME=cache-domains
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CACHE_DOMAINS_DIR="/var/${SERVICE_NAME}"
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CACHE_DOMAINS_SRC="https://api.github.com/repos/uklans/cache-domains/tarball/master"
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CONFIG_FILE="/etc/${SERVICE_NAME}.json"
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start() {
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mkdir -p ${CACHE_DOMAINS_DIR}
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rm -fr ${CACHE_DOMAINS_DIR}/*
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if ! wget -qO - ${CACHE_DOMAINS_SRC} | tar -xzC ${CACHE_DOMAINS_DIR}; then
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echo "ERROR: Could not retrieve ${CACHE_DOMAINS_SRC}"
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return 1
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fi
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INITIAL_DIR="$(pwd)"
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cd ${CACHE_DOMAINS_DIR}/*/scripts/
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if [ ! -f ${CONFIG_FILE} ]; then
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cp config.example.json ${CONFIG_FILE}
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echo "Using example config file ${CONFIG_FILE}"
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fi
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cp ${CONFIG_FILE} config.json
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./create-dnsmasq.sh
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cp ./output/dnsmasq/* /tmp/dnsmasq.d/
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cd ${INITIAL_DIR}
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/etc/init.d/dnsmasq restart
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}
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stop() {
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# leave dnsmasq in a clean state
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for FILE in ${CACHE_DOMAINS_DIR}/*/scripts/output/dnsmasq/*; do
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rm -f /tmp/dnsmasq.d/$(basename ${FILE})
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done
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/etc/init.d/dnsmasq restart
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}
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