From 7605b31d5f9c684bf2ae41d862a212dffbe3e23d Mon Sep 17 00:00:00 2001 From: Umang Chouhan Date: Tue, 16 Jan 2024 13:03:37 -0800 Subject: [PATCH 1/8] remove proxychains SUN-398 --- CHANGELOG.md | 22 +-- README.md | 179 +++++-------------------- bin/compile | 111 ++++----------- bin/detect | 2 +- bin/heroku-tailscale-start.sh | 1 - bin/heroku-tailscale-test.sh | 4 +- conf/proxychains.conf | 159 ---------------------- lib/environment.sh | 19 +++ test/fixtures/detect-sanity.stdout.txt | 2 +- 9 files changed, 94 insertions(+), 405 deletions(-) delete mode 100644 conf/proxychains.conf create mode 100644 lib/environment.sh diff --git a/CHANGELOG.md b/CHANGELOG.md index 3ce750f..4fffe81 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,31 +1,37 @@ ## Unreleased +- Update README. + +## 1.1.2 + +- Remove proxychains. + ## 1.1.1 (2023-06-15) -* Swap the ``_`` character for ``-`` in the hostname for +- Swap the `_` character for `-` in the hostname for the DYNO environment variable. ## 1.1.0 (2023-06-15) -* Updated the default TAILSCALE_HOSTNAME to be ``[commit]-[dyno]-[appname]``. +- Updated the default TAILSCALE_HOSTNAME to be `[commit]-[dyno]-[appname]`. This requires [Heroku Labs runtime-dyno-metadata](https://devcenter.heroku.com/articles/dyno-metadata) to be enabled. ## 1.0.1 (2023-06-15) -* Added ``TAILSCALE_BUILD_EXCLUDE_START_SCRIPT_FROM_PROFILE_D`` build environment variable +- Added `TAILSCALE_BUILD_EXCLUDE_START_SCRIPT_FROM_PROFILE_D` build environment variable to control when the tailscale script starts. ## 1.0.1 (2023-06-13) -* Updated default tailscale version from 1.40.0 to 1.42.0 +- Updated default tailscale version from 1.40.0 to 1.42.0 ## 1.0.0 (2023-05-11) -* Implement buildpack sourcing ideas from +- Implement buildpack sourcing ideas from https://github.com/moneymeets/python-poetry-buildpack, https://github.com/heroku/heroku-buildpack-pgbouncer and tailscale-docker and tailscale-heroku. -* Move the process to start tailscale into the .profile.d/ script. -* Only start Tailscale when the auth key is present in the environment +- Move the process to start tailscale into the .profile.d/ script. +- Only start Tailscale when the auth key is present in the environment variables. -* Create a ``heroku-tailscale-test.sh`` script for easier testing/verification. +- Create a `heroku-tailscale-test.sh` script for easier testing/verification. diff --git a/README.md b/README.md index fd3cea3..0de4374 100644 --- a/README.md +++ b/README.md @@ -1,56 +1,44 @@ # Heroku buildpack to use Tailscale on Heroku -Run [Tailscale](https://tailscale.com/) on a Heroku dyno, shoving connections through proxychains. - -## Why is proxychains necessary? - -It really shouldn't be. However, I discovered that in my project to use Django and PostgreSQL, -pyscopg did not respect the ``ALL_PROXY`` environment variable. In order to get the network -communication to go through the Tailscale SOCKS5 proxy, I needed to manually force it. Enter -proxychains-ng. - -This is based on https://tailscale.com/kb/1107/heroku/. - -Thank you to @rdotts, @kongmadai, @mvisonneau for their work on tailscale-docker and tailscale-heroku. +Run [Tailscale](https://tailscale.com/) on a Heroku dyno. ## Usage -To set up your Heroku application, add the buildpack and ``TAILSCALE_AUTH_KEY`` +To set up your Heroku application, add the buildpack and `TAILSCALE_AUTH_KEY` environment variable: - $ heroku buildpacks:add https://github.com/aspiredu/heroku-tailscale-buildpack - Buildpack added. Next release on test-app will use aspiredu/heroku-tailscale-buildpack. - Run `git push heroku main` to create a new release using this buildpack. - + $ heroku buildpacks:add https://github.com/sundaycarwash/heroku-buildpack-tailscale $ heroku config:set TAILSCALE_AUTH_KEY="..." - $ git push heroku main - ... -To have your processes connect through the Tailscale proxy, you need to update your -``Procfile``. Here's an example for a Django project with a Celery worker: +To have your processes connect through the Tailscale proxy, you need to use +the `socks5` proxy provided by `tailscaled`. ``` -web: proxychains4 -f vendor/proxychains-ng/conf/proxychains.conf uvicorn --host 0.0.0.0 --port "$PORT" myproject.project.asgi:application -worker: proxychains4 -f vendor/proxychains-ng/conf/proxychains.conf celery -A myproject.project worker +curl --socks5-hostname localhost:1055 +``` + +```ruby + TCPSocket.socks_server = "localhost" + TCPSocket.socks_port = 1055 ``` ## Testing the integration -To test a connection, you can add the ``hello.ts.net`` machine into your network. +To test a connection, you can add the `hello.ts.net` machine into your network. [Follow the instructions here](https://tailscale.com/kb/1073/hello/?q=testing). You may need to modify your ACLs to allow access to the test machine. For example, I have -a separate Tailscale token that is tagged with ``tag:test``. My ACL looks like: +a separate Tailscale token that is tagged with `tag:test`. My ACL looks like: ```json { "hosts": { - "hello-test": "100.101.102.103" + "hello-test": "100.101.102.103" }, - + // Access control lists. "acls": [ - // Only allow the test tag to access anything. - {"action": "accept", "src": ["tag:test"], "dst": ["hello-test:*"]} + // Only allow the test tag to access anything. + { "action": "accept", "src": ["tag:test"], "dst": ["hello-test:*"] } ] } ``` @@ -61,137 +49,36 @@ To verify the connection works run: heroku run -- heroku-tailscale-test.sh ``` -You should see curl respond with ``Found.`` - +You should see curl respond with `Found.` ## Configuration The following settings are available for configuration via environment variables: -- ``TAILSCALE_ACCEPT_DNS`` - Accept DNS configuration from the admin console. Defaults +- `TAILSCALE_ACCEPT_DNS` - Accept DNS configuration from the admin console. Defaults to accepting DNS settings. -- ``TAILSCALE_ACCEPT_ROUTES`` - Accept subnet routes that other nodes advertise. Linux devices - default to not accepting routes. Defaults to accepting. -- ``TAILSCALE_ADVERTISE_EXIT_NODES`` - Offer to be an exit node for outbound internet traffic +- `TAILSCALE_ACCEPT_ROUTES` - Accept subnet routes that other nodes advertise. Defaults + to accepting subnet routes. +- `TAILSCALE_ADVERTISE_EXIT_NODES` - Offer to be an exit node for outbound internet traffic from the Tailscale network. Defaults to not advertising. -- ``TAILSCALE_ADVERTISE_TAGS`` - Give tagged permissions to this device. You must be listed in +- `TAILSCALE_ADVERTISE_TAGS` - Give tagged permissions to this device. You must be listed in \"TagOwners\" to be able to apply tags. Defaults to none. -- ``TAILSCALE_AUTH_KEY`` - Provide an auth key to automatically authenticate the node as your +- `TAILSCALE_AUTH_KEY` - Provide an auth key[^1] to automatically authenticate the node as your user account. **This must be set.** -- ``TAILSCALE_HOSTNAME`` - Provide a hostname to use for the device instead of the one provided - by the OS. Note that this will change the machine name used in MagicDNS. Defaults to the +- `TAILSCALE_HOSTNAME` - Provide a hostname to use for the device instead of the one provided + by the OS. Note that this will change the machine name used in MagicDNS. Defaults to the hostname of the application (a guid). If you have [Heroku Labs runtime-dyno-metadata](https://devcenter.heroku.com/articles/dyno-metadata) - enabled, it defaults to ``[commit]-[dyno]-[appname]``. -- ``TAILSCALE_SHIELDS_UP"`` - Block incoming connections from other devices on your Tailscale + enabled, it defaults to `[commit]-[dyno]-[appname]`. +- `TAILSCALE_SHIELDS_UP"` - Block incoming connections from other devices on your Tailscale network. Useful for personal devices that only make outgoing connections. Defaults to off. -- ``TAILSCALED_VERBOSE`` - Controls verbosity for the tailscaled command. Defaults to 0. +- `TAILSCALED_VERBOSE` - Controls verbosity for the tailscaled command. Defaults to 0. The following settings are for the compile process for the buildpack. If you change these, you must trigger a new build to see the change. Simply changing the environment variables in Heroku will not cause a rebuild. These are all optional and will default to the latest values. -- ``TAILSCALE_BUILD_TS_VERSION`` - The target version Tailscale package. -- ``TAILSCALE_BUILD_TS_TARGETARCH`` - The target architecture for the Tailscale package. -- ``TAILSCALE_BUILD_EXCLUDE_START_SCRIPT_FROM_PROFILE_D`` - Excludes the start script from the - [buildpack's ``.profile.d/`` folder](https://devcenter.heroku.com/articles/buildpack-api#profile-d-scripts). - If you set this to true, you must call ``vendor/tailscale/heroku-tailscale-start.sh``. This likely should go - into your ``.profile`` script ([see Heroku docs](https://devcenter.heroku.com/articles/dynos#the-profile-file)). - Starting the script in your ``.profile`` file would allow you to better control environment - variables in respect to the executables. For example, a specific dyno could change - ``TAILSCALE_HOSTNAME`` before tailscale starts. -- ``TAILSCALE_BUILD_PROXYCHAINS_REPO`` - The repository to install the proxychains-ng library from. - - -### Customizing proxychains.conf - -If you decide you want to customize the ``proxychains.conf`` configuration file, you can copy the -file from conf into your project. If you copy it to the base directory of your application, -ProxyChains will find it automatically. If you copy it to a specific directory, such as conf, -you'll need to specify the path. - -For example, if your conf file exists at ``/conf/proxychains.conf`` your web command -would need to be: - -```shell -proxychains4 -f conf/proxychains.conf -``` - -## Deployment considerations - -Switching to a Tailscale database or service can be troublesome. Especially if you interact -with the resource during the [Release phase of Heroku's deployments](https://devcenter.heroku.com/articles/release-phase) -such as basic SQL migrations. This is because you don't want to use the ``proxychains4`` -wrapper if you don't have Tailscale running, and you can't have Tailscale running if you -don't have a valid Tailscale auth key and the database/resource configured in your tailnet. - -I suggest working these problems out in reverse allowing for a fallback to a connection -outside of your tailnet. Once you've done the final switch over, you can remove access -to your database/resource from outside of the tailnet. - -1. Configure database/resource to be accessible in and outside of your tailnet -2. Create a Tailscale auth key (reusuable[^1], not ephemeral, and appropriately tagged) -3. Add the auth key and the Tailscale database/resource url to your Heroku app's environment variables. - -```shell -heroku config:set TAILSCALE_AUTH_KEY= \ - TAILSCALE_DATABASE_URL= -``` - -4. Add the heroku-tailscale-buildpack - -```shell -heroku buildpacks:add https://github.com/aspiredu/heroku-tailscale-buildpack -``` - -5. (Optional) Test your integration. - 1. Add the [Tailscale test machine in your tailnet](https://tailscale.com/kb/1073/hello/?q=test) - 2. Create a test tag that can only access the hello.ts.net machine via your ACLs - 3. Create a reusable ephemeral auth token that has the test tag applied to it. - 4. Temporarily change your application to use the test auth key. - 5. Trigger a build. This should include this buildpack. - 6. Run a one-off dyno to confirm that the setup is correct. - - ```shell - heroku run heroku-tailscale-start.sh - ``` - 7. Restore the previous version of Tailscale auth key. - -6. Modify your application to try to use the Tailscale database/resource and fallback to - the non-tailnet version. If you're using python, the following script may help: - -```python -import os -import dj_database_url - -def tailscale_resource_key(base_key): - """Fetch the resource key for a Tailscale service. - - It checks for an environment variable with the TAILSCALE_ prefix - and if it exists and TAILSCALE_AUTH_KEY is defined, it uses that key. - Else it returns the value that was passed in. - - This is useful for configuring different services to use tailscale - without having to do everything all at once. - """ - tailscale_auth_key = "TAILSCALE_AUTH_KEY" - tailscale_resource_key = f"TAILSCALE_{base_key}" - return ( - tailscale_resource_key - if os.environ.get(tailscale_resource_key) and os.environ.get(tailscale_auth_key) - else base_key - ) - -DATABASES = { - "default": dj_database_url.config(env=tailscale_resource_key("DATABASE_URL")) -} -``` -7. Push your code to your Heroku application, triggering a new build. - -```shell -git push heroku -``` -8. You're now running your application connecting to your resources via Tailscale. - -[^1]: You want reusable auth keys here because it will be used across all of your dynos - in the application. +- `TAILSCALE_VERSION` - The Tailscale package version. +[^1]: + You want reusable auth keys here because it will be used across all of your dynos + in the application. diff --git a/bin/compile b/bin/compile index 3766de2..be0aaa4 100755 --- a/bin/compile +++ b/bin/compile @@ -17,10 +17,6 @@ set -euo pipefail # clean up leaking environment unset GIT_DIR -function log() { - echo "-----> $*" -} - function indent() { sed -e 's/^/ /' } @@ -31,93 +27,34 @@ CACHE_DIR=$2 ENV_DIR=$3 BUILDPACK_DIR="$(dirname "$(dirname "$0")")" -PC_BASE_DIR=$CACHE_DIR/proxychains-ng -PC_SOURCE_DIR=$CACHE_DIR/proxychains-ng/source -mkdir -p $PC_SOURCE_DIR +### Load Dependencies +source "$BUILDPACK_DIR/lib/environment.sh" -BUILDPACK_VARIABLES="TAILSCALE_BUILD_TS_VERSION TAILSCALE_BUILD_TS_TARGETARCH" +BUILDPACK_VARIABLES="TAILSCALE_VERSION" shopt -s nullglob -# Load any tailscale build environment variables for the application -# into the actual environment variables. -for env_file in $BUILDPACK_VARIABLES ; do - [ -f "$ENV_DIR/$env_file" ] && export "$(basename "$env_file")=$(cat "$ENV_DIR/$env_file" 2>/dev/null)" -done - -if [ -z "${TAILSCALE_BUILD_TS_TARGETARCH:-}" ] ; then - export TAILSCALE_BUILD_TS_TARGETARCH=amd64 - log "No Tailscale architecture specified in TAILSCALE_BUILD_TS_TARGETARCH config var. Defaulting to $TAILSCALE_BUILD_TS_TARGETARCH." -else - log "Using Tailscale architecture from TAILSCALE_BUILD_TS_TARGETARCH config var: $TAILSCALE_BUILD_TS_TARGETARCH" -fi - -if [ -z "${TAILSCALE_BUILD_TS_VERSION:-}" ] ; then - export TAILSCALE_BUILD_TS_VERSION=1.42.0 - log "No Tailscale version specified in TAILSCALE_BUILD_TS_VERSION config var. Defaulting to $TAILSCALE_BUILD_TS_VERSION." -else - log "Using Tailscale version from TAILSCALE_BUILD_TS_VERSION config var: $TAILSCALE_BUILD_TS_VERSION" -fi - -if [ -z "${TAILSCALE_BUILD_PROXYCHAINS_REPO:-}" ] ; then - export TAILSCALE_BUILD_PROXYCHAINS_REPO="https://github.com/rofl0r/proxychains-ng.git" - log "No ProxyChains repo specified in TAILSCALE_BUILD_PROXYCHAINS_REPO config var. Defaulting to $TAILSCALE_BUILD_PROXYCHAINS_REPO." -else - log "Using ProxyChains repo from TAILSCALE_BUILD_PROXYCHAINS_REPO config var: $TAILSCALE_BUILD_PROXYCHAINS_REPO" -fi - - -log "Install Tailscale" -log "Add Tailscale to the PATH" -mkdir -p "$BUILD_DIR/vendor/tailscale" -export PATH="$BUILD_DIR/vendor/tailscale:$PATH" - -log "Fetch Tailscale" -curl -sL "https://pkgs.tailscale.com/stable/tailscale_${TAILSCALE_BUILD_TS_VERSION}_${TAILSCALE_BUILD_TS_TARGETARCH}.tgz" \ - | tar -zxf - -C "${BUILD_DIR}/vendor/tailscale" --strip=1 tailscale_${TAILSCALE_BUILD_TS_VERSION}_${TAILSCALE_BUILD_TS_TARGETARCH}/tailscaled tailscale_${TAILSCALE_BUILD_TS_VERSION}_${TAILSCALE_BUILD_TS_TARGETARCH}/tailscale -# Mark the scripts as executable. -chmod +x "$BUILD_DIR/vendor/tailscale/tailscale" -chmod +x "$BUILD_DIR/vendor/tailscale/tailscaled" -cp "$BUILDPACK_DIR/bin/heroku-tailscale-start.sh" "$BUILD_DIR/vendor/tailscale/heroku-tailscale-start.sh" -cp "$BUILDPACK_DIR/bin/heroku-tailscale-test.sh" "$BUILD_DIR/vendor/tailscale/heroku-tailscale-test.sh" -chmod +x "$BUILD_DIR/vendor/tailscale/heroku-tailscale-start.sh" -chmod +x "$BUILD_DIR/vendor/tailscale/heroku-tailscale-test.sh" +export_env_dir "$ENV_DIR" + +: ${TAILSCALE_VERSION:=1.56.1} && echo "-----> Using Tailscale version: $TAILSCALE_VERSION" + +mkdir -p "$BUILD_DIR/.heroku/tailscale/bin" +export PATH="$BUILD_DIR/.heroku/tailscale/bin:$PATH" + +echo "-----> Downloading Tailscale" +curl -sL "https://pkgs.tailscale.com/stable/tailscale_${TAILSCALE_VERSION}_amd64.tgz" \ + | tar -zxf - -C "${BUILD_DIR}/.heroku/tailscale/bin" --strip=1 tailscale_${TAILSCALE_VERSION}_amd64/tailscaled tailscale_${TAILSCALE_VERSION}_amd64/tailscale + +chmod +x "$BUILD_DIR/.heroku/tailscale/bin/tailscale" +chmod +x "$BUILD_DIR/.heroku/tailscale/bin/tailscaled" + +cp "$BUILDPACK_DIR/bin/heroku-tailscale-start.sh" "$BUILD_DIR/.heroku/tailscale/bin/heroku-tailscale-start.sh" +cp "$BUILDPACK_DIR/bin/heroku-tailscale-test.sh" "$BUILD_DIR/.heroku/tailscale/bin/heroku-tailscale-test.sh" + +chmod +x "$BUILD_DIR/.heroku/tailscale/bin/heroku-tailscale-start.sh" +chmod +x "$BUILD_DIR/.heroku/tailscale/bin/heroku-tailscale-test.sh" mkdir -p $BUILD_DIR/.profile.d 2>&1 | indent rm -f $BUILD_DIR/.profile.d/heroku-tailscale-buildpack.sh 2>&1 | indent -echo 'export PATH="/app/vendor/tailscale:$PATH"' >> $BUILD_DIR/.profile.d/heroku-tailscale-buildpack.sh 2>&1 | indent - -log "Install ProxyChains-ng" - -log "Clone ProxyChains repo" -rm -r $PC_SOURCE_DIR -git clone $TAILSCALE_BUILD_PROXYCHAINS_REPO $PC_SOURCE_DIR 2>&1 | indent - -pushd $PC_SOURCE_DIR > /dev/null -PC_VERSION_TAG=$(git describe --tags| cut -d- -f1) -CACHED_BUILD_DIR=$PC_BASE_DIR/proxychains-ng-$PC_VERSION_TAG - -if [[ ! -d $CACHED_BUILD_DIR ]]; then - log "Building ProxyChains $PC_VERSION_TAG" - make clean 2>&1 | indent - git checkout $PC_VERSION_TAG 2>&1 | indent - ./configure --prefix=/app/vendor/proxychains-ng 2>&1 | indent - make 2>&1 | indent - DESTDIR=$CACHED_BUILD_DIR make install 2>&1 | indent -fi -popd > /dev/null - -log "Installing ProxyChains into the slug" -mkdir -p "$BUILD_DIR/vendor/proxychains-ng" -cp -r "$BUILDPACK_DIR/conf" "$BUILD_DIR/vendor/proxychains-ng/conf" -echo 'export PATH="/app/vendor/proxychains-ng/bin:$PATH"' >> $BUILD_DIR/.profile.d/heroku-tailscale-buildpack.sh 2>&1 | indent -echo 'export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/app/vendor/proxychains-ng/lib";' >> $BUILD_DIR/.profile.d/heroku-tailscale-buildpack.sh 2>&1 | indent - -if [[ "${TAILSCALE_BUILD_EXCLUDE_START_SCRIPT_FROM_PROFILE_D:-}" != "True" ]]; then - # Add the line to start tailscale to the end of the file - echo "/app/vendor/tailscale/heroku-tailscale-start.sh" >> $BUILD_DIR/.profile.d/heroku-tailscale-buildpack.sh 2>&1 | indent -fi - -pushd $CACHED_BUILD_DIR/app > /dev/null -cp -rv ./ $BUILD_DIR 2>&1 | indent -popd > /dev/null +echo 'export PATH="/app/.heroku/tailscale/bin:$PATH"' >> $BUILD_DIR/.profile.d/heroku-buildpack-tailscale.sh 2>&1 | indent +echo "/app/.heroku/tailscale/bin/heroku-tailscale-start.sh" >> $BUILD_DIR/.profile.d/heroku-buildpack-tailscale.sh 2>&1 | indent diff --git a/bin/detect b/bin/detect index b34379a..a9ed65f 100755 --- a/bin/detect +++ b/bin/detect @@ -1,5 +1,5 @@ #!/usr/bin/env bash # bin/detect -echo 'tailscale' +echo 'Tailscale' exit 0 diff --git a/bin/heroku-tailscale-start.sh b/bin/heroku-tailscale-start.sh index 3c57c30..2317d81 100755 --- a/bin/heroku-tailscale-start.sh +++ b/bin/heroku-tailscale-start.sh @@ -45,6 +45,5 @@ else sleep 5 done - export ALL_PROXY=socks5://localhost:1055/ log "Tailscale started" fi diff --git a/bin/heroku-tailscale-test.sh b/bin/heroku-tailscale-test.sh index 0216e5f..e4436fa 100755 --- a/bin/heroku-tailscale-test.sh +++ b/bin/heroku-tailscale-test.sh @@ -14,9 +14,9 @@ else log "Running `tailscale status` You should see your accessible machines on your tailnet." tailscale status - log "Running `proxychains4 -f vendor/proxychains-ng/conf/proxychains.conf curl hello.ts.net` " + log "Running `curl --socks5-hostname localhost:1055 hello.ts.net` " log 'Things are working if you see Found.' - proxychains4 -f vendor/proxychains-ng/conf/proxychains.conf curl hello.ts.net + curl --socks5-hostname localhost:1055 hello.ts.net log "If you didn't see the Found message, then you may need to add the hello.ts.net machine into your tailnet or configure your auth key to have access to it." log "Test complete. I hope you had your fingers crossed!" fi diff --git a/conf/proxychains.conf b/conf/proxychains.conf deleted file mode 100644 index a51aae0..0000000 --- a/conf/proxychains.conf +++ /dev/null @@ -1,159 +0,0 @@ -# proxychains.conf VER 4.x -# -# HTTP, SOCKS4a, SOCKS5 tunneling proxifier with DNS. - - -# The option below identifies how the ProxyList is treated. -# only one option should be uncommented at time, -# otherwise the last appearing option will be accepted -# -#dynamic_chain -# -# Dynamic - Each connection will be done via chained proxies -# all proxies chained in the order as they appear in the list -# at least one proxy must be online to play in chain -# (dead proxies are skipped) -# otherwise EINTR is returned to the app -# -strict_chain -# -# Strict - Each connection will be done via chained proxies -# all proxies chained in the order as they appear in the list -# all proxies must be online to play in chain -# otherwise EINTR is returned to the app -# -#round_robin_chain -# -# Round Robin - Each connection will be done via chained proxies -# of chain_len length -# all proxies chained in the order as they appear in the list -# at least one proxy must be online to play in chain -# (dead proxies are skipped). -# the start of the current proxy chain is the proxy after the last -# proxy in the previously invoked proxy chain. -# if the end of the proxy chain is reached while looking for proxies -# start at the beginning again. -# otherwise EINTR is returned to the app -# These semantics are not guaranteed in a multithreaded environment. -# -#random_chain -# -# Random - Each connection will be done via random proxy -# (or proxy chain, see chain_len) from the list. -# this option is good to test your IDS :) - -# Make sense only if random_chain or round_robin_chain -#chain_len = 2 - -# Quiet mode (no output from library) -#quiet_mode - -## Proxy DNS requests - no leak for DNS data -# (disable all of the 3 items below to not proxy your DNS requests) - -# method 1. this uses the proxychains4 style method to do remote dns: -# a thread is spawned that serves DNS requests and hands down an ip -# assigned from an internal list (via remote_dns_subnet). -# this is the easiest (setup-wise) and fastest method, however on -# systems with buggy libcs and very complex software like webbrowsers -# this might not work and/or cause crashes. -#proxy_dns - -# method 2. use the old proxyresolv script to proxy DNS requests -# in proxychains 3.1 style. requires `proxyresolv` in $PATH -# plus a dynamically linked `dig` binary. -# this is a lot slower than `proxy_dns`, doesn't support .onion URLs, -# but might be more compatible with complex software like webbrowsers. -#proxy_dns_old - -# method 3. use proxychains4-daemon process to serve remote DNS requests. -# this is similar to the threaded `proxy_dns` method, however it requires -# that proxychains4-daemon is already running on the specified address. -# on the plus side it doesn't do malloc/threads so it should be quite -# compatible with complex, async-unsafe software. -# note that if you don't start proxychains4-daemon before using this, -# the process will simply hang. -#proxy_dns_daemon 127.0.0.1:1053 - -# set the class A subnet number to use for the internal remote DNS mapping -# we use the reserved 224.x.x.x range by default, -# if the proxified app does a DNS request, we will return an IP from that range. -# on further accesses to this ip we will send the saved DNS name to the proxy. -# in case some control-freak app checks the returned ip, and denies to -# connect, you can use another subnet, e.g. 10.x.x.x or 127.x.x.x. -# of course you should make sure that the proxified app does not need -# *real* access to this subnet. -# i.e. dont use the same subnet then in the localnet section -#remote_dns_subnet 127 -#remote_dns_subnet 10 -remote_dns_subnet 224 - -# Some timeouts in milliseconds -tcp_read_time_out 15000 -tcp_connect_time_out 8000 - -### Examples for localnet exclusion -## localnet ranges will *not* use a proxy to connect. -## note that localnet works only when plain IP addresses are passed to the app, -## the hostname resolves via /etc/hosts, or proxy_dns is disabled or proxy_dns_old used. - -## Exclude connections to 192.168.1.0/24 with port 80 -# localnet 192.168.1.0:80/255.255.255.0 - -## Exclude connections to 192.168.100.0/24 -# localnet 192.168.100.0/255.255.255.0 - -## Exclude connections to ANYwhere with port 80 -# localnet 0.0.0.0:80/0.0.0.0 -# localnet [::]:80/0 - -## RFC6890 Loopback address range -## if you enable this, you have to make sure remote_dns_subnet is not 127 -## you'll need to enable it if you want to use an application that -## connects to localhost. -# localnet 127.0.0.0/255.0.0.0 -# localnet ::1/128 - -## RFC1918 Private Address Ranges -# localnet 10.0.0.0/255.0.0.0 -# localnet 172.16.0.0/255.240.0.0 -# localnet 192.168.0.0/255.255.0.0 - -### Examples for dnat -## Trying to proxy connections to destinations which are dnatted, -## will result in proxying connections to the new given destinations. -## Whenever I connect to 1.1.1.1 on port 1234 actually connect to 1.1.1.2 on port 443 -# dnat 1.1.1.1:1234 1.1.1.2:443 - -## Whenever I connect to 1.1.1.1 on port 443 actually connect to 1.1.1.2 on port 443 -## (no need to write :443 again) -# dnat 1.1.1.2:443 1.1.1.2 - -## No matter what port I connect to on 1.1.1.1 port actually connect to 1.1.1.2 on port 443 -# dnat 1.1.1.1 1.1.1.2:443 - -## Always, instead of connecting to 1.1.1.1, connect to 1.1.1.2 -# dnat 1.1.1.1 1.1.1.2 - -# ProxyList format -# type ip port [user pass] -# (values separated by 'tab' or 'blank') -# -# only numeric ipv4 addresses are valid -# -# -# Examples: -# -# socks5 192.168.67.78 1080 lamer secret -# http 192.168.89.3 8080 justu hidden -# socks4 192.168.1.49 1080 -# http 192.168.39.93 8080 -# -# -# proxy types: http, socks4, socks5, raw -# * raw: The traffic is simply forwarded to the proxy without modification. -# ( auth types supported: "basic"-http "user/pass"-socks ) -# - -[ProxyList] -socks5 127.0.0.1 1055 diff --git a/lib/environment.sh b/lib/environment.sh new file mode 100644 index 0000000..b5cbe02 --- /dev/null +++ b/lib/environment.sh @@ -0,0 +1,19 @@ +#!/usr/bin/env bash + +export_env_dir() { + local env_dir=$1 + if [ -d "$env_dir" ]; then + local whitelist_regex=${2:-''} + local blacklist_regex=${3:-'^(PATH|GIT_DIR|CPATH|CPPATH|LD_PRELOAD|LIBRARY_PATH|LANG|BUILD_DIR)$'} + # shellcheck disable=SC2164 + pushd "$env_dir" >/dev/null + for e in *; do + [ -e "$e" ] || continue + echo "$e" | grep -E "$whitelist_regex" | grep -qvE "$blacklist_regex" && + export "$e=$(cat "$e")" + : + done + # shellcheck disable=SC2164 + popd >/dev/null + fi +} \ No newline at end of file diff --git a/test/fixtures/detect-sanity.stdout.txt b/test/fixtures/detect-sanity.stdout.txt index 0d52153..0e7ff02 100644 --- a/test/fixtures/detect-sanity.stdout.txt +++ b/test/fixtures/detect-sanity.stdout.txt @@ -1 +1 @@ -tailscale +Tailscale From 0c910d69d8991a219cf76c47dbcb0c45775e87bc Mon Sep 17 00:00:00 2001 From: Umang Chouhan Date: Tue, 16 Jan 2024 13:14:04 -0800 Subject: [PATCH 2/8] fix specs --- test/fixtures/compile-sanity-1.stderr.txt | 2 +- test/fixtures/compile-sanity-2.stderr.txt | 2 +- test/fixtures/compile-sanity-3.stderr.txt | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/test/fixtures/compile-sanity-1.stderr.txt b/test/fixtures/compile-sanity-1.stderr.txt index 6c5b5d9..12d6a03 100644 --- a/test/fixtures/compile-sanity-1.stderr.txt +++ b/test/fixtures/compile-sanity-1.stderr.txt @@ -1 +1 @@ -../bin/compile: line 29: $1: unbound variable +../bin/compile: line 25: $1: unbound variable diff --git a/test/fixtures/compile-sanity-2.stderr.txt b/test/fixtures/compile-sanity-2.stderr.txt index 8a9684a..e29cf5c 100644 --- a/test/fixtures/compile-sanity-2.stderr.txt +++ b/test/fixtures/compile-sanity-2.stderr.txt @@ -1 +1 @@ -../bin/compile: line 30: $2: unbound variable +../bin/compile: line 26: $2: unbound variable diff --git a/test/fixtures/compile-sanity-3.stderr.txt b/test/fixtures/compile-sanity-3.stderr.txt index be7b62a..6785790 100644 --- a/test/fixtures/compile-sanity-3.stderr.txt +++ b/test/fixtures/compile-sanity-3.stderr.txt @@ -1 +1 @@ -../bin/compile: line 31: $3: unbound variable +../bin/compile: line 27: $3: unbound variable From e0b9012ef6979f7e3d5424a1a2810c2a1ba86010 Mon Sep 17 00:00:00 2001 From: Umang Chouhan Date: Tue, 16 Jan 2024 19:07:57 -0800 Subject: [PATCH 3/8] rename buildpack --- .github/workflows/tests.yml | 16 ++++++++-------- CONTRIBUTING.md | 18 +++++++++--------- bin/compile | 2 +- buildpack.toml | 12 +++--------- test/stack-test.sh | 2 +- 5 files changed, 22 insertions(+), 28 deletions(-) diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml index 1639028..7d98dd7 100644 --- a/.github/workflows/tests.yml +++ b/.github/workflows/tests.yml @@ -10,17 +10,17 @@ jobs: test: runs-on: ubuntu-latest steps: - - uses: actions/checkout@v3 - - name: run smoke tests - run: bash run_tests.sh + - uses: actions/checkout@v3 + - name: run smoke tests + run: bash run_tests.sh test-stack: strategy: matrix: stack: [heroku-18, heroku-20, heroku-22] runs-on: ubuntu-latest steps: - - uses: actions/checkout@v3 - - name: run stack test - run: bash test/stack-test.sh ${{ matrix.stack }} - env: - TAILSCALE_TEST_AUTH_KEY: ${{ secrets.TAILSCALE_TEST_AUTH_KEY }} + - uses: actions/checkout@v3 + - name: run stack test + run: bash test/stack-test.sh ${{ matrix.stack }} + env: + TAILSCALE_TEST_AUTH_KEY: ${{ secrets.TAILSCALE_TEST_AUTH_KEY }} diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md index 860f5af..06e2d77 100644 --- a/CONTRIBUTING.md +++ b/CONTRIBUTING.md @@ -1,9 +1,9 @@ # Contributing Guidelines -There are two different sets of tests to run. ``run_tests.sh`` does some basic -verification of the bin scripts. ``stack-test.sh`` spins up a Docker image with +There are two different sets of tests to run. `run_tests.sh` does some basic +verification of the bin scripts. `stack-test.sh` spins up a Docker image with Heroku's base image to verify the installation works locally. To run this second one, -you will need to create a Tailscale token that can connect to ``hello.ts.net``. See +you will need to create a Tailscale token that can connect to `hello.ts.net`. See [Tailscale's documentation on testing](https://tailscale.com/kb/1073/hello/?q=testing). ```shell @@ -14,17 +14,17 @@ test/stack-test.sh heroku-22 ## CI TailScale auth token -Eventually the GitHub ``TAILSCALE_TEST_AUTH_KEY`` will expire (every 90 days). +Eventually the GitHub `TAILSCALE_TEST_AUTH_KEY` will expire (every 90 days). When that happens a new token will need to be generated. It should be reusable, -ephemeral and have the ``tag:test`` tag applied to it. It will need to be copied -to the ``TAILSCALE_TEST_AUTH_KEY`` repository secret for this repo. +ephemeral and have the `tag:test` tag applied to it. It will need to be copied +to the `TAILSCALE_TEST_AUTH_KEY` repository secret for this repo. ## Releasing updates ```shell heroku plugins:install buildpack-registry -cd heroku-tailscale-buildpack +cd heroku-buildpack-tailscale git checkout main -heroku buildpacks:publish aspiredu/heroku-tailscale-buildpack -``` \ No newline at end of file +heroku buildpacks:publish sundaycarwash/heroku-buildpack-tailscale +``` diff --git a/bin/compile b/bin/compile index be0aaa4..dfd127a 100755 --- a/bin/compile +++ b/bin/compile @@ -55,6 +55,6 @@ chmod +x "$BUILD_DIR/.heroku/tailscale/bin/heroku-tailscale-start.sh" chmod +x "$BUILD_DIR/.heroku/tailscale/bin/heroku-tailscale-test.sh" mkdir -p $BUILD_DIR/.profile.d 2>&1 | indent -rm -f $BUILD_DIR/.profile.d/heroku-tailscale-buildpack.sh 2>&1 | indent +rm -f $BUILD_DIR/.profile.d/heroku-buildpack-tailscale.sh 2>&1 | indent echo 'export PATH="/app/.heroku/tailscale/bin:$PATH"' >> $BUILD_DIR/.profile.d/heroku-buildpack-tailscale.sh 2>&1 | indent echo "/app/.heroku/tailscale/bin/heroku-tailscale-start.sh" >> $BUILD_DIR/.profile.d/heroku-buildpack-tailscale.sh 2>&1 | indent diff --git a/buildpack.toml b/buildpack.toml index 316f326..9645408 100644 --- a/buildpack.toml +++ b/buildpack.toml @@ -1,11 +1,5 @@ [buildpack] -name = "heroku-tailscale-buildpack" +name = "heroku-buildpack-tailscale" - [publish.Ignore] - files = [ - ".github/", - "test/", - ".gitignore", - "Dockerfile", - "run_tests.sh", - ] +[publish.Ignore] +files = [".github/", "test/", ".gitignore", "Dockerfile", "run_tests.sh"] diff --git a/test/stack-test.sh b/test/stack-test.sh index 586ff0c..b0199c7 100755 --- a/test/stack-test.sh +++ b/test/stack-test.sh @@ -22,7 +22,7 @@ docker build \ -t "$OUTPUT_IMAGE" \ . -LOAD_ENV_VARS="source .profile.d/heroku-tailscale-buildpack.sh" +LOAD_ENV_VARS="source .profile.d/heroku-buildpack-tailscale.sh" TEST_COMMAND="$LOAD_ENV_VARS && heroku-tailscale-test.sh" docker run \ From 3dafc8cd5d90480e53649b2e5e6d0d22045aa14a Mon Sep 17 00:00:00 2001 From: Umang Chouhan Date: Tue, 16 Jan 2024 19:26:34 -0800 Subject: [PATCH 4/8] fix tests --- Dockerfile | 2 +- bin/heroku-tailscale-test.sh | 8 ++++---- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/Dockerfile b/Dockerfile index 960a4ee..3b215ff 100644 --- a/Dockerfile +++ b/Dockerfile @@ -10,6 +10,6 @@ RUN env -i PATH=$PATH HOME=$HOME STACK=$STACK /buildpack/bin/detect /app RUN env -i PATH=$PATH HOME=$HOME STACK=$STACK /buildpack/bin/compile /app /cache /env # Install test utililties -RUN apt-get update && apt-get install -y curl +RUN apt-get update || true && apt-get install -y curl WORKDIR /app diff --git a/bin/heroku-tailscale-test.sh b/bin/heroku-tailscale-test.sh index e4436fa..176b6f1 100755 --- a/bin/heroku-tailscale-test.sh +++ b/bin/heroku-tailscale-test.sh @@ -14,9 +14,9 @@ else log "Running `tailscale status` You should see your accessible machines on your tailnet." tailscale status - log "Running `curl --socks5-hostname localhost:1055 hello.ts.net` " - log 'Things are working if you see Found.' - curl --socks5-hostname localhost:1055 hello.ts.net - log "If you didn't see the Found message, then you may need to add the hello.ts.net machine into your tailnet or configure your auth key to have access to it." + log "Running `curl --socks5-hostname localhost:1055 raspberrypi` " + log 'Things are working if you see Found.' + curl --socks5-hostname localhost:1055 raspberrypi + log "If you didn't see the Found message, then you may need to add the tail3c015.ts.net machine into your tailnet or configure your auth key to have access to it." log "Test complete. I hope you had your fingers crossed!" fi From a7e50bd4223e4bd7f7a61f4b2d59389d992777f2 Mon Sep 17 00:00:00 2001 From: Umang Chouhan Date: Tue, 16 Jan 2024 19:39:12 -0800 Subject: [PATCH 5/8] format --- LICENSE | 366 ++++++++++++++++++++++++++-------------------------- bin/compile | 2 +- 2 files changed, 184 insertions(+), 184 deletions(-) diff --git a/LICENSE b/LICENSE index 68b8700..9a84ef2 100644 --- a/LICENSE +++ b/LICENSE @@ -2,180 +2,180 @@ Version 2.0, January 2004 http://www.apache.org/licenses/ - TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - - 1. 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To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" @@ -186,16 +186,16 @@ same "printed page" as the copyright notice for easier identification within third-party archives. - Copyright 2023 - AspirEDU +Copyright 2023 - Sun Day Carwash - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. diff --git a/bin/compile b/bin/compile index dfd127a..131416f 100755 --- a/bin/compile +++ b/bin/compile @@ -27,7 +27,7 @@ CACHE_DIR=$2 ENV_DIR=$3 BUILDPACK_DIR="$(dirname "$(dirname "$0")")" -### Load Dependencies +# load dependencies source "$BUILDPACK_DIR/lib/environment.sh" BUILDPACK_VARIABLES="TAILSCALE_VERSION" From 3c02bf3227c90bafaa1c48d7278353c71d27f9c9 Mon Sep 17 00:00:00 2001 From: Umang Chouhan Date: Thu, 18 Jan 2024 12:53:18 -0800 Subject: [PATCH 6/8] suppress tailscaled logs --- bin/heroku-tailscale-start.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/bin/heroku-tailscale-start.sh b/bin/heroku-tailscale-start.sh index 2317d81..e4da5d4 100755 --- a/bin/heroku-tailscale-start.sh +++ b/bin/heroku-tailscale-start.sh @@ -32,7 +32,7 @@ else fi log "Using Tailscale hostname=$tailscale_hostname" - tailscaled -verbose ${TAILSCALED_VERBOSE:-0} --tun=userspace-networking --socks5-server=localhost:1055 & + nohup tailscaled -verbose ${TAILSCALED_VERBOSE:-0} --tun=userspace-networking --socks5-server=localhost:1055 > /dev/null & until tailscale up \ --authkey=${TAILSCALE_AUTH_KEY} \ --hostname="$tailscale_hostname" \ From 06cc1d063701065bf938d2b016301ff658481e96 Mon Sep 17 00:00:00 2001 From: Umang Chouhan Date: Thu, 18 Jan 2024 12:57:10 -0800 Subject: [PATCH 7/8] remove nohup --- bin/heroku-tailscale-start.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/bin/heroku-tailscale-start.sh b/bin/heroku-tailscale-start.sh index e4da5d4..b108d29 100755 --- a/bin/heroku-tailscale-start.sh +++ b/bin/heroku-tailscale-start.sh @@ -32,7 +32,7 @@ else fi log "Using Tailscale hostname=$tailscale_hostname" - nohup tailscaled -verbose ${TAILSCALED_VERBOSE:-0} --tun=userspace-networking --socks5-server=localhost:1055 > /dev/null & + tailscaled -verbose ${TAILSCALED_VERBOSE:-0} --tun=userspace-networking --socks5-server=localhost:1055 > /dev/null & until tailscale up \ --authkey=${TAILSCALE_AUTH_KEY} \ --hostname="$tailscale_hostname" \ From b619a1920d2d4567a7a50dd6eae1909eeac686d3 Mon Sep 17 00:00:00 2001 From: Umang Chouhan Date: Thu, 18 Jan 2024 13:07:51 -0800 Subject: [PATCH 8/8] revert --- bin/heroku-tailscale-start.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/bin/heroku-tailscale-start.sh b/bin/heroku-tailscale-start.sh index b108d29..2317d81 100755 --- a/bin/heroku-tailscale-start.sh +++ b/bin/heroku-tailscale-start.sh @@ -32,7 +32,7 @@ else fi log "Using Tailscale hostname=$tailscale_hostname" - tailscaled -verbose ${TAILSCALED_VERBOSE:-0} --tun=userspace-networking --socks5-server=localhost:1055 > /dev/null & + tailscaled -verbose ${TAILSCALED_VERBOSE:-0} --tun=userspace-networking --socks5-server=localhost:1055 & until tailscale up \ --authkey=${TAILSCALE_AUTH_KEY} \ --hostname="$tailscale_hostname" \