Add a page about upstream projects

3 files changed, 171 insertions, 0 deletions

diff --git a/site/about/index.md b/site/about/index.md
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+<div class='status-page'>
+  <section class='banner'>
+    <div class='containerCustom'>
+      <div class='left-shape'>
+        <img src='/img/global/shape-left.svg' />
+      </div>
+      <div class='right-shape'>
+        <img src='/img/global/shape-right.svg' />
+      </div>
+
+  <div class='banner-div'>
+
+  # About VyOS
+
+  </div>
+
+  </div>
+  </section>
+
+  <section class='content-section'>
+    <div class='content-div'>
+
+ * [Upstream projects](/about/upstream-projects)
+
+
+  </div>
+
+</div>
diff --git a/site/about/upstream-projects.md b/site/about/upstream-projects.md
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+++ b/site/about/upstream-projects.md
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+<div class='status-page'>
+  <section class='banner'>
+    <div class='containerCustom'>
+      <div class='left-shape'>
+        <img src='/img/global/shape-left.svg' />
+      </div>
+      <div class='right-shape'>
+        <img src='/img/global/shape-right.svg' />
+      </div>
+
+  <div class='banner-div'>
+
+
+# Upstream projects
+
+  </div>
+
+  </div>
+  </section>
+
+  <section class='content-section'>
+    <div class='content-div'>
+
+
+## Debian GNU/Linux
+
+Debian GNU/Linux has been our base distribution for many years.
+We use Debian's live-build to build our images, and Debian gives us a stable and reliable
+base system to build upon.
+
+### How do we contribute to Debian?
+
+VyOS is a platinum-level sponsor of Debian long-term support project led by [Freexian](https://www.freexian.com/lts/debian/).
+
+## Linux kernel
+
+We are still amazed by networking capabilities of the Linux kernel.
+Our firewall and NAT, AH and ESP parts of IPsec, VRF, multi-path routing,
+and lots of other things are frontends for features of the kernel — and so is support for
+a huge number of network cards and other hardware.
+
+## FreeRangeRouting (FRR)
+
+[FreeRangeRouting](https://frrouting.org) is our routing protocol stack and control plane.
+That's what powers our BGP, OSPF, IS-IS, PIM, and other dynamic routing protocols,
+maintains a unified <abbr title="Routing Information Base">RIB</abbr>,
+and installs routes into the Linux kernel network stack.
+
+FRR is an actively-developed fork of the now-defunct Quagga project that we used previously,
+and we are looking forward to many more years of collaboration with its maintainers.
+
+### How do we contribute to FRR?
+
+We sponsor a Slack workspace for the FRR community, and we contribute code
+and report bugs to them.
+
+## Python
+
+Our configuration scripts and operational mode commands are written in Python.
+We love the design of the language, we adopted Python3 right away, and we make heavy use of
+recent features such as gradual typing — for example, our operational mode command options
+and API endpoints are automatically generated from function names and their type annotations.
+
+Without a large ecosystem of libraries and long-established projects like the Jinja2 template processor,
+those scripts would take a lot longer to write. Another reason we chose Python is that
+many systems and network administrators are already familiar with it from automation tools and scripts
+and it makes it easier for them to start contributing to VyOS.
+
+### How do we contribute to Python?
+
+We make donations to [Python Software Foundation](https://www.python.org/psf/donations/).
+
+## OCaml
+
+The core parts of the configuration subsystem are written in OCaml — a functional, strict language,
+compiled to native machine code. Python modules for working with the configuration tree
+are in fact thin wrappers for the OCaml library,
+and we will eventually replace the legacy configuration backend completely.
+
+Immutable (persistent) datastructures allow us to work with multiple slightly different copies of a configuration tree
+without copying them, and we like how the language is very expressive and fast.
+
+### How do we contribute to OCaml?
+
+Our team members maintain multiple libraries and made contributions to the libraries we use
+and some small contributions to the OCaml runtime.
+
+## Accel-PPP
+
+Accel-PPP powers our PPPoE, IPoE, L2TP, SSTP, and PPTP implementations.
+Adopting it gave us more protocols and a much better performance
+than other alternatives could provide.
+
+## StrongSWAN
+
+StrongSWAN is our <abbr title="Internet Key Exchange">IKE</abbr> implementation.
+IPsec traffic encryption is implemented in the Linux kernel,
+but it needs an IKE implementation to establish connections with peers
+and negotiate settings, and StrongSWAN does that well.
+
+We deeply appreciate that StrongSWAN provides an [API](https://github.com/strongswan/strongswan/blob/master/src/libcharon/plugins/vici/README.md)
+and Python libraries for interacting with it — that makes our work a lot easier!
+
+## Kea
+
+CUrrently supported LTS releases (1.4 and 1.3) still use legacy ISC DHCP server,
+but rolling release and stream images already use Kea and take advantage of its
+many design and implementation improvements.
+
+## Keepalived
+
+We use Keepalived for our VRRP implementation and LVS configuration.
+
+### How do we contribute to Keepalived?
+
+We contributed some improvements to it, including machine-readable statistic output.
+
+## WireGuard
+
+VyOS was one of the first network OSes to add WireGuard to its CLI
+and give users an option to use a fast and lightweight VPN protocol
+in addition to classics like IPsec and OpenVPN.
+
+### How do we contribute to WireGuard?
+
+We sponsored the maintainer for quite a while.
+
+## OpenVPN
+
+We support OpenVPN in all three modes (server, client, and site-to-site)
+and we are happy to integrate all new features its adds,
+such as DCO (Data Channel Offload) acceleration
+and fingerprint-based site-to-site mode.
+
+## PowerDNS
+
+We use PowerDNS for our DNS forwarding and authoritative DNS services —
+it's fast, flexible, and secure.
+
+</div>
+</div>
diff --git a/templates/main.html b/templates/main.html
index 427318a..bbef798 100644
--- a/templates/main.html
+++ b/templates/main.html
@@ -66,6 +66,7 @@
 						</div>
 						<div class="links">
 							<a href="/get">GET VYOS</a>
+                                                        <a href="/about">ABOUT</a>
 							<a href="/contribute">CONTRIBUTE</a>
                                                         <a href="/status">RELEASE STATUS</a>
                                                         <a href="https://docs.vyos.io">DOCUMENTATION</a>
@@ -108,6 +109,7 @@
 							>
 								<div class="bottom-menu">
 									<a href="/get">GET VYOS</a>
+                                                                        <a href="/about">ABOUT</a>
 									<a href="/contribute">CONTRIBUTE</a>
                                                                         <a href="/status">RELEASE STATUS</a>
                                                                         <a href="https://docs.vyos.io">DOCUMENTATION</a>