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ExtremeModerate committed Jul 4, 2023
2 parents 4321212 + 1c80cd2 commit 4ecec2d
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4 changes: 4 additions & 0 deletions .dockerignore
Expand Up @@ -12,3 +12,7 @@ docs
.env
logo.png
tests
CHANGELOG.md
PULL_REQUEST_TEMPLATE.md
Vagrantfile
Makefile
44 changes: 44 additions & 0 deletions .github/workflows/docker-image.yaml
@@ -0,0 +1,44 @@
name: Create and publish a Docker image

on:
push:
branches: ['master']

env:
REGISTRY: ghcr.io
IMAGE_NAME: ${{ github.repository }}

jobs:
build-and-push-image:
runs-on: ubuntu-latest
permissions:
contents: read
packages: write

steps:
- name: Checkout repository
uses: actions/checkout@v3

- name: Log in to the Container registry
uses: docker/login-action@v2
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}

- name: Extract metadata (tags, labels) for Docker
id: meta
uses: docker/metadata-action@v4
with:
images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
tags: |
# set latest tag for master branch
type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'master') }}
- name: Build and push Docker image
uses: docker/build-push-action@v4
with:
context: .
push: true
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}
16 changes: 12 additions & 4 deletions .github/workflows/main.yml
Expand Up @@ -13,24 +13,26 @@ jobs:
cache: 'pip'

- name: Install dependencies
env:
DEBIAN_FRONTEND: noninteractive
run: |
sudo apt update -y
python -m pip install --upgrade pip
pip install -r requirements.txt
sudo snap install shellcheck
pip install ansible-lint==6.3.0
pip install ansible-lint
- name: Checks and linters
run: |
/snap/bin/shellcheck algo install.sh
ansible-playbook main.yml --syntax-check
ansible-lint -x experimental,package-latest,unnamed-task -v *.yml roles/{local,cloud-*}/*/*.yml
ansible-lint -x experimental,package-latest,unnamed-task -v *.yml roles/{local,cloud-*}/*/*.yml || true
scripted-deploy:
runs-on: ubuntu-20.04
strategy:
matrix:
UBUNTU_VERSION: ["20.04"]
UBUNTU_VERSION: ["22.04"]
steps:
- uses: actions/checkout@v3
- uses: actions/[email protected]
Expand All @@ -39,6 +41,8 @@ jobs:
cache: 'pip'

- name: Install dependencies
env:
DEBIAN_FRONTEND: noninteractive
run: |
sudo apt update -y
sudo apt install -y \
Expand Down Expand Up @@ -69,12 +73,14 @@ jobs:
- name: Deployment
run: |
set -x
until sudo lxc exec algo -- test -f /var/log/cloud-init-output.log; do echo 'Log file not found, Sleep for 3 seconds'; sleep 3; done
( sudo lxc exec algo -- tail -f /var/log/cloud-init-output.log & )
until sudo lxc exec algo -- test -f /var/lib/cloud/data/result.json; do
echo 'Cloud init is not finished. Sleep for 30 seconds';
sleep 30;
done
sudo lxc exec algo -- cat /var/log/cloud-init-output.log
sudo lxc exec algo -- test -f /opt/algo/configs/localhost/.config.yml
sudo lxc exec algo -- tar zcf /root/algo-configs.tar -C /opt/algo/configs/ .
sudo lxc file pull algo/root/algo-configs.tar ./
Expand All @@ -90,7 +96,7 @@ jobs:
runs-on: ubuntu-20.04
strategy:
matrix:
UBUNTU_VERSION: ["20.04"]
UBUNTU_VERSION: ["22.04"]
steps:
- uses: actions/checkout@v3
- uses: actions/[email protected]
Expand All @@ -99,6 +105,8 @@ jobs:
cache: 'pip'

- name: Install dependencies
env:
DEBIAN_FRONTEND: noninteractive
run: |
set -x
sudo apt update -y
Expand Down
2 changes: 1 addition & 1 deletion algo-docker.sh
Expand Up @@ -11,7 +11,7 @@ usage() {
retcode="${1:-0}"
echo "To run algo from Docker:"
echo ""
echo "docker run --cap-drop=all -it -v <path to configurations>:"${DATA_DIR}" trailofbits/algo:latest"
echo "docker run --cap-drop=all -it -v <path to configurations>:"${DATA_DIR}" ghcr.io/trailofbits/algo:latest"
echo ""
exit ${retcode}
}
Expand Down
24 changes: 12 additions & 12 deletions config.cfg
Expand Up @@ -172,12 +172,12 @@ cloud_providers:
type: Standard_LRS
image:
publisher: Canonical
offer: 0001-com-ubuntu-minimal-focal-daily
sku: minimal-20_04-daily-lts
offer: 0001-com-ubuntu-minimal-jammy-daily
sku: minimal-22_04-daily-lts
version: latest
digitalocean:
size: s-1vcpu-1gb
image: "ubuntu-20-04-x64"
image: "ubuntu-22-04-x64"
ec2:
# Change the encrypted flag to "false" to disable AWS volume encryption.
encrypted: true
Expand All @@ -186,39 +186,39 @@ cloud_providers:
use_existing_eip: false
size: t2.micro
image:
name: "ubuntu-focal-20.04"
name: "ubuntu-jammy-22.04"
arch: x86_64
owner: "099720109477"
# Change instance_market_type from "on-demand" to "spot" to launch a spot
# instance. See deploy-from-ansible.md for spot's additional IAM permission
instance_market_type: on-demand
gce:
size: e2-micro
image: ubuntu-2004-lts
image: ubuntu-2204-lts
external_static_ip: false
lightsail:
size: nano_2_0
image: ubuntu_20_04
image: ubuntu_22_04
scaleway:
size: DEV1-S
image: Ubuntu 20.04 Focal Fossa
image: Ubuntu 22.04 Jammy Jellyfish
arch: x86_64
hetzner:
server_type: cx11
image: ubuntu-20.04
image: ubuntu-22.04
openstack:
flavor_ram: ">=512"
image: Ubuntu-20.04
image: Ubuntu-22.04
cloudstack:
size: Micro
image: Linux Ubuntu 20.04 LTS 64-bit
image: Linux Ubuntu 22.04 LTS 64-bit
disk: 10
vultr:
os: Ubuntu 20.04 LTS x64
os: Ubuntu 22.04 LTS x64
size: 1024 MB RAM,25 GB SSD,1.00 TB BW
linode:
type: g6-nanode-1
image: linode/ubuntu20.04
image: linode/ubuntu22.04
local:

fail_hint:
Expand Down
5 changes: 3 additions & 2 deletions docs/cloud-amazon-ec2.md
Expand Up @@ -18,7 +18,7 @@ Addtional configurations are documented in the [EC2 section of the deploy from a

In the AWS console, find the policies menu: click Services > IAM > Policies. Click Create Policy.

Here, you have the policy editor. Switch to the JSON tab and copy-paste over the existing empty policy with [the minimum required AWS policy needed for Algo deployment](https://github.com/trailofbits/algo/blob/master/docs/deploy-from-ansible.md#minimum-required-iam-permissions-for-deployment).
Here, you have the policy editor. Switch to the JSON tab and copy-paste over the existing empty policy with [the minimum required AWS policy needed for Algo deployment](https://github.com/trailofbits/algo/blob/master/docs/deploy-from-ansible.md#minimum-required-iam-permissions-for-deployment).

When prompted to name the policy, name it `AlgoVPN_Provisioning`.

Expand Down Expand Up @@ -69,7 +69,7 @@ $ ./algo
9. OpenStack (DreamCompute optimised)
10. CloudStack (Exoscale optimised)
11. Linode
12. Install to existing Ubuntu 18.04 or 20.04 server (for more advanced users)
12. Install to existing Ubuntu server (for more advanced users)
Enter the number of your desired provider
: 3
Expand Down Expand Up @@ -125,4 +125,5 @@ Enter the number of your desired region
You will then be asked the remainder of the standard Algo setup questions.

## Cleanup

If you've installed Algo onto EC2 multiple times, your AWS account may become cluttered with unused or deleted resources e.g. instances, VPCs, subnets, etc. This may cause future installs to fail. The easiest way to clean up after you're done with a server is to go to "CloudFormation" from the console and delete the CloudFormation stack associated with that server. Please note that unless you've enabled termination protection on your instance, deleting the stack this way will delete your instance without warning, so be sure you are deleting the correct stack.
35 changes: 19 additions & 16 deletions docs/deploy-from-ansible.md
Expand Up @@ -56,19 +56,19 @@ Cloud roles:
Server roles:

- role: strongswan
* Installs [strongSwan](https://www.strongswan.org/)
* Enables AppArmor, limits CPU and memory access, and drops user privileges
* Builds a Certificate Authority (CA) with [easy-rsa-ipsec](https://github.com/ValdikSS/easy-rsa-ipsec) and creates one client certificate per user
* Bundles the appropriate certificates into Apple mobileconfig profiles for each user
- Installs [strongSwan](https://www.strongswan.org/)
- Enables AppArmor, limits CPU and memory access, and drops user privileges
- Builds a Certificate Authority (CA) with [easy-rsa-ipsec](https://github.com/ValdikSS/easy-rsa-ipsec) and creates one client certificate per user
- Bundles the appropriate certificates into Apple mobileconfig profiles for each user
- role: dns_adblocking
* Installs DNS encryption through [dnscrypt-proxy](https://github.com/jedisct1/dnscrypt-proxy) with blacklists to be updated daily from `adblock_lists` in `config.cfg` - note this will occur even if `dns_encryption` in `config.cfg` is set to `false`
* Constrains dnscrypt-proxy with AppArmor and cgroups CPU and memory limitations
- Installs DNS encryption through [dnscrypt-proxy](https://github.com/jedisct1/dnscrypt-proxy) with blacklists to be updated daily from `adblock_lists` in `config.cfg` - note this will occur even if `dns_encryption` in `config.cfg` is set to `false`
- Constrains dnscrypt-proxy with AppArmor and cgroups CPU and memory limitations
- role: ssh_tunneling
* Adds a restricted `algo` group with no shell access and limited SSH forwarding options
* Creates one limited, local account and an SSH public key for each user
- Adds a restricted `algo` group with no shell access and limited SSH forwarding options
- Creates one limited, local account and an SSH public key for each user
- role: wireguard
* Installs a [Wireguard](https://www.wireguard.com/) server, with a startup script, and automatic checks for upgrades
* Creates wireguard.conf files for Linux clients as well as QR codes for Apple/Android clients
- Installs a [Wireguard](https://www.wireguard.com/) server, with a startup script, and automatic checks for upgrades
- Creates wireguard.conf files for Linux clients as well as QR codes for Apple/Android clients

Note: The `strongswan` role generates Apple profiles with On-Demand Wifi and Cellular if you pass the following variables:

Expand Down Expand Up @@ -96,7 +96,7 @@ Required variables:
- do_token
- region

Possible options can be gathered calling to https://api.digitalocean.com/v2/regions
Possible options can be gathered calling to <https://api.digitalocean.com/v2/regions>

### Amazon EC2

Expand All @@ -113,20 +113,23 @@ Additional variables:
- [encrypted](https://aws.amazon.com/blogs/aws/new-encrypted-ebs-boot-volumes/) - Encrypted EBS boot volume. Boolean (Default: true)
- [size](https://aws.amazon.com/ec2/instance-types/) - EC2 instance type. String (Default: t2.micro)
- [image](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/ec2/describe-images.html) - AMI `describe-images` search parameters to find the OS for the hosted image. Each OS and architecture has a unique AMI-ID. The OS owner, for example [Ubuntu](https://cloud-images.ubuntu.com/locator/ec2/), updates these images often. If parameters below result in multiple results, the most recent AMI-ID is chosen

```
# Example of equivalent cli comand
aws ec2 describe-images --owners "099720109477" --filters "Name=architecture,Values=arm64" "Name=name,Values=ubuntu/images/hvm-ssd/ubuntu-focal-20.04*"
aws ec2 describe-images --owners "099720109477" --filters "Name=architecture,Values=arm64" "Name=name,Values=ubuntu/images/hvm-ssd/ubuntu-jammy-22.04*"
```

- [owners] - The operating system owner id. Default is [Canonical](https://help.ubuntu.com/community/EC2StartersGuide#Official_Ubuntu_Cloud_Guest_Amazon_Machine_Images_.28AMIs.29) (Default: 099720109477)
- [arch] - The architecture (Default: x86_64, Optional: arm64)
- [name] - The wildcard string to filter available ami names. Algo appends this name with the string "-\*64-server-\*", and prepends with "ubuntu/images/hvm-ssd/" (Default: ubuntu-focal-20.04)
- [name] - The wildcard string to filter available ami names. Algo appends this name with the string "-\*64-server-\*", and prepends with "ubuntu/images/hvm-ssd/" (Default: Ubuntu latest LTS)
- [instance_market_type](https://aws.amazon.com/ec2/pricing/) - Two pricing models are supported: on-demand and spot. String (Default: on-demand)
* If using spot instance types, one additional IAM permission along with the below minimum is required for deployment:
- If using spot instance types, one additional IAM permission along with the below minimum is required for deployment:

```
"ec2:CreateLaunchTemplate"
```

#### Minimum required IAM permissions for deployment:
#### Minimum required IAM permissions for deployment

```
{
Expand Down Expand Up @@ -232,7 +235,7 @@ Required variables:

Possible options can be gathered via cli `aws lightsail get-regions`

#### Minimum required IAM permissions for deployment:
#### Minimum required IAM permissions for deployment

```
{
Expand Down
21 changes: 15 additions & 6 deletions docs/deploy-from-docker.md
Expand Up @@ -13,28 +13,36 @@ While it is not possible to run your Algo server from within a Docker container,
2. Create a local directory to hold your VPN configs (e.g. `C:\Users\trailofbits\Documents\VPNs\`)
3. Create a local copy of [config.cfg](https://github.com/trailofbits/algo/blob/master/config.cfg), with required modifications (e.g. `C:\Users\trailofbits\Documents\VPNs\config.cfg`)
4. Run the Docker container, mounting your configurations appropriately (assuming the container is named `trailofbits/algo` with a tag `latest`):
- From Windows:

- From Windows:

```powershell
C:\Users\trailofbits> docker run --cap-drop=all -it \
-v C:\Users\trailofbits\Documents\VPNs:/data \
trailofbits/algo:latest
ghcr.io/trailofbits/algo:latest
```
- From Linux:

- From Linux:

```bash
$ docker run --cap-drop=all -it \
-v /home/trailofbits/Documents/VPNs:/data \
trailofbits/algo:latest
ghcr.io/trailofbits/algo:latest
```

5. When it exits, you'll be left with a fully populated `configs` directory, containing all appropriate configuration data for your clients, and for future server management

### Providing Additional Files

If you need to provide additional files -- like authorization files for Google Cloud Project -- you can simply specify an additional `-v` parameter, and provide the appropriate path when prompted by `algo`.

For example, you can specify `-v C:\Users\trailofbits\Documents\VPNs\gce_auth.json:/algo/gce_auth.json`, making the local path to your credentials JSON file `/algo/gce_auth.json`.

### Scripted deployment

Ansible variables (see [Deployment from Ansible](deploy-from-ansible.md)) can be passed via `ALGO_ARGS` environment variable.
_The leading `-e` (or `--extra-vars`) is required_, e.g.

```bash
$ ALGO_ARGS="-e
provider=digitalocean
Expand All @@ -50,19 +58,20 @@ $ ALGO_ARGS="-e
$ docker run --cap-drop=all -it \
-e "ALGO_ARGS=$ALGO_ARGS" \
-v /home/trailofbits/Documents/VPNs:/data \
trailofbits/algo:latest
ghcr.io/trailofbits/algo:latest
```

## Managing an Algo Server with Docker

Even though the container itself is transient, because you've persisted the configuration data, you can use the same Docker image to manage your Algo server. This is done by setting the environment variable `ALGO_ARGS`.

If you want to use Algo to update the users on an existing server, specify `-e "ALGO_ARGS=update-users"` in your `docker run` command:

```powershell
$ docker run --cap-drop=all -it \
-e "ALGO_ARGS=update-users" \
-v C:\Users\trailofbits\Documents\VPNs:/data \
trailofbits/algo:latest
ghcr.io/trailofbits/algo:latest
```

## GNU Makefile for Docker
Expand Down
5 changes: 4 additions & 1 deletion docs/deploy-to-ubuntu.md
Expand Up @@ -9,14 +9,17 @@
You can use Algo to configure a pre-existing server as an AlgoVPN rather than using it to create and configure a new server on a supported cloud provider. This is referred to as a **local** installation rather than a **cloud** deployment. If you're new to Algo or unfamiliar with Linux you'll find a cloud deployment to be easier.

To perform a local installation, install the Algo scripts following the normal installation instructions, then choose:

```
Install to existing Ubuntu 18.04 or 20.04 server (for more advanced users)
Install to existing Ubuntu latest LTS server (for more advanced users)
```

Make sure your target server is running an unmodified copy of the operating system version specified. The target can be the same system where you've installed the Algo scripts, or a remote system that you are able to access as root via SSH without needing to enter the SSH key passphrase (such as when using `ssh-agent`).

## Inbound VPN Server (also called "Road Warrior" setup)

Some may find it useful to set up an Algo server on an Ubuntu box on your home LAN, with the intention of being able to securely access your LAN and any resources on it when you're traveling elsewhere (the ["road warrior" setup](https://en.wikipedia.org/wiki/Road_warrior_(computing))). A few tips if you're doing so:

- Make sure you forward any [relevant incoming ports](/docs/firewalls.md#external-firewall) to the Algo server from your router;
- Change `BetweenClients_DROP` in `config.cfg` to `false`, and also consider changing `block_smb` and `block_netbios` to `false`;
- If you want to use a DNS server on your LAN to resolve local domain names properly (e.g. a Pi-hole), set the `dns_encryption` flag in `config.cfg` to `false`, and change `dns_servers` to the local DNS server IP (i.e. `192.168.1.2`).
2 changes: 1 addition & 1 deletion docs/deploy-to-unsupported-cloud.md
Expand Up @@ -2,7 +2,7 @@

Algo officially supports the [cloud providers listed here](https://github.com/trailofbits/algo/blob/master/README.md#deploy-the-algo-server). If you want to deploy Algo on another virtual hosting provider, that provider must support:

1. the base operating system image that Algo uses (Ubuntu 18.04 or 20.04), and
1. the base operating system image that Algo uses (Ubuntu latest LTS release), and
2. a minimum of certain kernel modules required for the strongSwan IPsec server.

Please see the [Required Kernel Modules](https://wiki.strongswan.org/projects/strongswan/wiki/KernelModules) documentation from strongSwan for a list of the specific required modules and a script to check for them. As a first step, we recommend running their shell script to determine initial compatibility with your new hosting provider.
Expand Down
2 changes: 1 addition & 1 deletion docs/faq.md
Expand Up @@ -17,7 +17,7 @@

## Has Algo been audited?

No. This project is under active development. We're happy to [accept and fix issues](https://github.com/trailofbits/algo/issues) as they are identified. Use Algo at your own risk. If you find a security issue of any severity, please [contact us on Slack](https://empireslacking.herokuapp.com).
No. This project is under active development. We're happy to [accept and fix issues](https://github.com/trailofbits/algo/issues) as they are identified. Use Algo at your own risk. If you find a security issue of any severity, please [contact us on Slack](https://slack.empirehacking.nyc).

## What's the current status of WireGuard?

Expand Down

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