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286 lines
9.6 KiB
Markdown
286 lines
9.6 KiB
Markdown
# docker-tor-hidden-service
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[](https://travis-ci.org/cmehay/docker-tor-hidden-service)
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## Setup
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### Setup hosts
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From 2019, new conf to handle tor v3 address has been added. Here an example with `docker-compose` v2+:
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```yaml
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version: "2"
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services:
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tor:
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image: goldy/tor-hidden-service:0.3.5.8
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links:
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- hello
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- world
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- again
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environment:
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# Set mapping ports
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HELLO_TOR_SERVICE_HOSTS: 80:hello:80,800:hello:80,8888:hello:80
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# Set private key
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HELLO_TOR_SERVICE_KEY: |
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-----BEGIN RSA PRIVATE KEY-----
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MIICXQIBAAKBgQDR8TdQF9fDlGhy1SMgfhMBi9TaFeD12/FK27TZE/tYGhxXvs1C
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NmFJy1hjVxspF5unmUsCk0yEsvEdcAdp17Vynz6W41VdinETU9yXHlUJ6NyI32AH
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dnFnHEcsllSEqD1hPAAvMUWwSMJaNmBEFtl8DUMS9tPX5fWGX4w5Xx8dZwIDAQAB
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AoGBAMb20jMHxaZHWg2qTRYYJa8LdHgS0BZxkWYefnBUbZn7dOz7mM+tddpX6raK
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8OSqyQu3Tc1tB9GjPLtnVr9KfVwhUVM7YXC/wOZo+u72bv9+4OMrEK/R8xy30XWj
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GePXEu95yArE4NucYphxBLWMMu2E4RodjyJpczsl0Lohcn4BAkEA+XPaEKnNA3AL
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1DXRpSpaa0ukGUY/zM7HNUFMW3UP00nxNCpWLSBmrQ56Suy7iSy91oa6HWkDD/4C
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k0HslnMW5wJBANdz4ehByMJZmJu/b5y8wnFSqep2jmJ1InMvd18BfVoBTQJwGMAr
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+qwSwNXXK2YYl9VJmCPCfgN0o7h1AEzvdYECQAM5UxUqDKNBvHVmqKn4zShb1ugY
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t1RfS8XNbT41WhoB96MT9P8qTwlniX8UZiwUrvNp1Ffy9n4raz8Z+APNwvsCQQC9
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AuaOsReEmMFu8VTjNh2G+TQjgvqKmaQtVNjuOgpUKYv7tYehH3P7/T+62dcy7CRX
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cwbLaFbQhUUUD2DCHdkBAkB6CbB+qhu67oE4nnBCXllI9EXktXgFyXv/cScNvM9Y
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FDzzNAAfVc5Nmbmx28Nw+0w6pnpe/3m0Tudbq3nHdHfQ
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-----END RSA PRIVATE KEY-----
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# hello and again will share the same onion v3 address
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FOO_TOR_SERVICE_HOSTS: 88:again:80,8000:world:80
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FOO_TOR_SERVICE_VERSION: '3'
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# tor v3 address private key base 64 encoded
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FOO_TOR_SERVICE_KEY: |
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PT0gZWQyNTUxOXYxLXNlY3JldDogdHlwZTAgPT0AAACArobDQYyZAWXei4QZwr++
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j96H1X/gq14NwLRZ2O5DXuL0EzYKkdhZSILY85q+kfwZH8z4ceqe7u1F+0pQi/sM
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hello:
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image: tutum/hello-world
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hostname: hello
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world:
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image: tutum/hello-world
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hostname: world
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again:
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image: tutum/hello-world
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hostname: again
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```
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This configuration will output:
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```
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foo: xwjtp3mj427zdp4tljiiivg2l5ijfvmt5lcsfaygtpp6cw254kykvpyd.onion:88, xwjtp3mj427zdp4tljiiivg2l5ijfvmt5lcsfaygtpp6cw254kykvpyd.onion:8000
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hello: 5azvyr7dvvr4cldn.onion:80, 5azvyr7dvvr4cldn.onion:800, 5azvyr7dvvr4cldn.onion:8888
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```
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#### Environment variables
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##### `{SERVICE}_TOR_SERVICE_HOSTS`
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The config patern for this variable is: `{exposed_port}:{hostname}:{port}}`
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For example `80:hello:8080` will expose an onion service on port 80 to the port 8080 of hello hostname.
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Unix sockets are supported too, `80:unix://path/to/socket.sock` will expose an onion service on port 80 to the socket `/path/to/socket.sock`. See `docker-compose.v2.socket.yml` for an example.
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You can concatenate services using comas.
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> **WARNING**: Using sockets and ports in the same service group can lead to issues
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##### `{SERVICE}_TOR_SERVICE_VERSION`
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Can be `2` or `3`. Set the tor address type.
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`2` gives short addresses `5azvyr7dvvr4cldn.onion` and `3` long addresses `xwjtp3mj427zdp4tljiiivg2l5ijfvmt5lcsfaygtpp6cw254kykvpyd.onion`
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##### `{SERVICE}_TOR_SERVICE_KEY`
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You can set the private key for the current service.
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Tor v2 addresses uses RSA PEM keys like:
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```
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-----BEGIN RSA PRIVATE KEY-----
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MIICXQIBAAKBgQDR8TdQF9fDlGhy1SMgfhMBi9TaFeD12/FK27TZE/tYGhxXvs1C
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NmFJy1hjVxspF5unmUsCk0yEsvEdcAdp17Vynz6W41VdinETU9yXHlUJ6NyI32AH
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dnFnHEcsllSEqD1hPAAvMUWwSMJaNmBEFtl8DUMS9tPX5fWGX4w5Xx8dZwIDAQAB
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AoGBAMb20jMHxaZHWg2qTRYYJa8LdHgS0BZxkWYefnBUbZn7dOz7mM+tddpX6raK
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8OSqyQu3Tc1tB9GjPLtnVr9KfVwhUVM7YXC/wOZo+u72bv9+4OMrEK/R8xy30XWj
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GePXEu95yArE4NucYphxBLWMMu2E4RodjyJpczsl0Lohcn4BAkEA+XPaEKnNA3AL
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1DXRpSpaa0ukGUY/zM7HNUFMW3UP00nxNCpWLSBmrQ56Suy7iSy91oa6HWkDD/4C
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k0HslnMW5wJBANdz4ehByMJZmJu/b5y8wnFSqep2jmJ1InMvd18BfVoBTQJwGMAr
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+qwSwNXXK2YYl9VJmCPCfgN0o7h1AEzvdYECQAM5UxUqDKNBvHVmqKn4zShb1ugY
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t1RfS8XNbT41WhoB96MT9P8qTwlniX8UZiwUrvNp1Ffy9n4raz8Z+APNwvsCQQC9
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AuaOsReEmMFu8VTjNh2G+TQjgvqKmaQtVNjuOgpUKYv7tYehH3P7/T+62dcy7CRX
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cwbLaFbQhUUUD2DCHdkBAkB6CbB+qhu67oE4nnBCXllI9EXktXgFyXv/cScNvM9Y
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FDzzNAAfVc5Nmbmx28Nw+0w6pnpe/3m0Tudbq3nHdHfQ
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-----END RSA PRIVATE KEY-----
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```
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Tor v3 addresses uses ed25519 binary keys. It should be base64 encoded:
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```
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PT0gZWQyNTUxOXYxLXNlY3JldDogdHlwZTAgPT0AAACArobDQYyZAWXei4QZwr++j96H1X/gq14NwLRZ2O5DXuL0EzYKkdhZSILY85q+kfwZH8z4ceqe7u1F+0pQi/sM
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```
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#### Secrets
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Secret key can be set through docker `secrets`, see `docker-compose.v3.yml` for example.
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### Tools
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A command line tool `onions` is available in container to get `.onion` url when container is running.
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```sh
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# Get services
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$ docker exec -ti torhiddenproxy_tor_1 onions
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hello: vegm3d7q64gutl75.onion:80
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world: b2sflntvdne63amj.onion:80
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# Get json
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$ docker exec -ti torhiddenproxy_tor_1 onions --json
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{"hello": ["b2sflntvdne63amj.onion:80"], "world": ["vegm3d7q64gutl75.onion:80"]}
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```
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### Auto reload
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Changing `/etc/tor/torrc` file triggers a `SIGHUP` signal to `tor` to reload configuration.
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To disable this behavior, add `ENTRYPOINT_DISABLE_RELOAD` in environment.
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### Versions
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Container version will follow tor release versions.
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### pyentrypoint
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This container uses [`pyentrypoint`](https://github.com/cmehay/pyentrypoint) to generate its setup.
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If you need to use the legacy version, please checkout the `legacy` branch or pull `goldy/tor-hidden-service:legacy`.
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### pytor
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This containner uses [`pytor`](https://github.com/cmehay/pytor) to mannages tor cryptography, generate keys and compute onion urls.
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# Legacy deprecated doc
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> **WARNING**: ALL THE DOC BELLOW IS LEGACY, IT'S STILL WORKING BUT IT'S NOT RECOMMENDED ANYMORE AND COULD BE DROPPED IN FUTURE RELEASES.
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### Create a tor hidden service with a link
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```sh
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# run a container with a network application
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$ docker run -d --name hello_world tutum/hello-world
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# and just link it to this container
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$ docker run -ti --link hello_world goldy/tor-hidden-service
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```
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The .onion URLs are displayed to stdout at startup.
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To keep onion keys, just mount volume `/var/lib/tor/hidden_service/`
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```sh
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$ docker run -ti --link something --volume /path/to/keys:/var/lib/tor/hidden_service/ goldy/tor-hidden-service
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```
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Look at the `docker-compose.yml` file to see how to use it.
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### Set private key
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Private key is settable by environment or by copying file in `hostname/private_key` in docket volume (`hostname` is the link name).
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It's easier to pass key in environment with `docker-compose`.
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```yaml
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links:
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- hello
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- world
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environment:
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# Set private key
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HELLO_KEY: |
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-----BEGIN RSA PRIVATE KEY-----
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MIICXQIBAAKBgQDR8TdQF9fDlGhy1SMgfhMBi9TaFeD12/FK27TZE/tYGhxXvs1C
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NmFJy1hjVxspF5unmUsCk0yEsvEdcAdp17Vynz6W41VdinETU9yXHlUJ6NyI32AH
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dnFnHEcsllSEqD1hPAAvMUWwSMJaNmBEFtl8DUMS9tPX5fWGX4w5Xx8dZwIDAQAB
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AoGBAMb20jMHxaZHWg2qTRYYJa8LdHgS0BZxkWYefnBUbZn7dOz7mM+tddpX6raK
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8OSqyQu3Tc1tB9GjPLtnVr9KfVwhUVM7YXC/wOZo+u72bv9+4OMrEK/R8xy30XWj
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GePXEu95yArE4NucYphxBLWMMu2E4RodjyJpczsl0Lohcn4BAkEA+XPaEKnNA3AL
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1DXRpSpaa0ukGUY/zM7HNUFMW3UP00nxNCpWLSBmrQ56Suy7iSy91oa6HWkDD/4C
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k0HslnMW5wJBANdz4ehByMJZmJu/b5y8wnFSqep2jmJ1InMvd18BfVoBTQJwGMAr
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+qwSwNXXK2YYl9VJmCPCfgN0o7h1AEzvdYECQAM5UxUqDKNBvHVmqKn4zShb1ugY
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t1RfS8XNbT41WhoB96MT9P8qTwlniX8UZiwUrvNp1Ffy9n4raz8Z+APNwvsCQQC9
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AuaOsReEmMFu8VTjNh2G+TQjgvqKmaQtVNjuOgpUKYv7tYehH3P7/T+62dcy7CRX
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cwbLaFbQhUUUD2DCHdkBAkB6CbB+qhu67oE4nnBCXllI9EXktXgFyXv/cScNvM9Y
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FDzzNAAfVc5Nmbmx28Nw+0w6pnpe/3m0Tudbq3nHdHfQ
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-----END RSA PRIVATE KEY-----
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```
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Options are set using the following pattern: `LINKNAME_KEY`
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### Setup port
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__Caution__: Using `PORT_MAP` with multiple ports on single service will cause `tor` to fail.
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Use link setting in environment with the following pattern: `LINKNAME_PORTS`.
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Like docker, first port is exposed port and the second one is service internal port.
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```yaml
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links:
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- hello
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- world
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- hey
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environment:
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# Set mapping ports
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HELLO_PORTS: 80:80
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# Multiple ports can be coma separated
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WORLD_PORTS: 8000:80,8888:80,22:22
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# Socket mapping is supported
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HEY_PORTS: 80:unix:/var/run/socket.sock
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```
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__DEPRECATED:__
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By default, ports are the same as linked containers, but a default port can be mapped using `PORT_MAP` environment variable.
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#### Socket
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To increase security, it's possible to setup your service through socket between containers and turn off network in your app container. See `docker-compose.v2.sock.yml` for an example.
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__Warning__: Due to a bug in `tor` configuration parser, it's not possible to mix network link and socket link in the same `tor` configuration.
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### Group services
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Multiple services can be hosted behind the same onion address.
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```yaml
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links:
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- hello
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- world
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- hey
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environment:
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# Set mapping ports
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HELLO_PORTS: 80:80
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# Multiple ports can be coma separated
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WORLD_PORTS: 8000:80,8888:80,22:22
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# Socket mapping is supported
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HEY_PORTS: 80:unix:/var/run/socket.sock
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# hello and world will share the same onion address
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# Service name can be any string as long there is not special char
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HELLO_SERVICE_NAME: foo
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WORLD_SERVICE_NAME: foo
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```
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__Warning__: Be carefull to not use the same exposed ports for grouped services.
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### Compose v2 support
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Links setting are required when using docker-compose v2. See `docker-compose.v2.yml` for example.
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### Copose v3 support and secrets
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Links setting are required when using docker-compose v3. See `docker-compose.v3.yml` for example.
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