From 05cf6bdec5cf03b23766cc7675d9294222e9a801 Mon Sep 17 00:00:00 2001
From: Tin Lam <tin@irrational.io>
Date: Mon, 11 Jan 2021 11:15:52 -0600
Subject: [PATCH] fix(proxy): fixes up proxy issues

This patch set fixes outstanding issues and ease the use of the AIO when
deployed behind a corporate proxy.

Signed-off-by: Tin Lam <tin@irrational.io>
Change-Id: Ia80cce18e6a7d3105bfed3ec423bbbd678dbe019
---
 doc/source/conf.py                            |  4 +-
 doc/source/install/jarvis/index.rst           |  1 +
 doc/source/install/jarvis/proxy.rst           | 46 +++++++++++++++++++
 doc/source/install/jarvis/vagrant.rst         | 18 +++++++-
 tools/deployment/vagrant/Vagrantfile          | 14 +++++-
 tools/gate/deploy-k8s.sh                      | 26 ++++++++---
 tools/gate/jarvis/010-pre-setup.sh            | 18 ++++++++
 tools/gate/jarvis/050-setup-development-ca.sh |  4 +-
 tools/gate/jarvis/600-deploy-tekton.sh        | 20 +++++++-
 .../triggertemplates/triggertemplate.yaml     |  8 +++-
 10 files changed, 145 insertions(+), 14 deletions(-)
 create mode 100644 doc/source/install/jarvis/proxy.rst
 create mode 100755 tools/gate/jarvis/010-pre-setup.sh

diff --git a/doc/source/conf.py b/doc/source/conf.py
index 9d0af1bd..91866c3f 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -28,8 +28,10 @@ author = 'Airship Charts Authors'
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
 extensions = [
-    'recommonmark'
+    'recommonmark',
+    'sphinx.ext.autosectionlabel'
 ]
+autosectionlabel_prefix_document = True
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']
diff --git a/doc/source/install/jarvis/index.rst b/doc/source/install/jarvis/index.rst
index fd935e3b..8eb178ad 100644
--- a/doc/source/install/jarvis/index.rst
+++ b/doc/source/install/jarvis/index.rst
@@ -9,3 +9,4 @@ Contents:
    introduction
    requirements-and-host-config
    vagrant
+   proxy
diff --git a/doc/source/install/jarvis/proxy.rst b/doc/source/install/jarvis/proxy.rst
new file mode 100644
index 00000000..b9ffaf0c
--- /dev/null
+++ b/doc/source/install/jarvis/proxy.rst
@@ -0,0 +1,46 @@
+=====================================
+Running Jarvis Behind Corporate Proxy
+=====================================
+
+Environment Variables
+=====================
+
+On the host machine, ensure the following environment variables are set with the appropriate proxy information:
+``HTTP_PROXY``, ``HTTPS_PROXY``, and ``NO_PROXY``. You will also need to set the environment variable ``PRIVATE_NS``
+to an IP address of a corporate name server that will resolve internal URLs.
+
+Vagrant Plugin
+==============
+
+To easily set up the Vagrant box's proxy setting, install the `vagrant_proxyconf`_ plugin by running:
+
+.. code:: bash
+
+  $ vagrant plugin install vagrant-proxyconf
+
+``NO_PROXY`` Configuration
+==========================
+
+In the event ``NO_PROXY`` is not specified, the following default value will be used:
+
+.. code::
+
+  localhost,127.0.0.1,10.96.0.0/12,192.168.49.0/24,192.168.99.0/24,10.0.2.15,10.244.0.0/16,172.28.0.0/30,.minikube.internal,.svc,.svc.cluster.local,jarvis.local
+
+Please note the following will need to be accounted for to avoid traffic being routed through the proxy:
+
+- Localhost: ``localhost`` and ``127.0.0.1``,
+- Host and guest machine IP and name: ``jarvis``, ``jarvis.local``, etc.,
+- Minikube specific IP ranges (e.g. ``102.168.49.0/24``). See minikube's `documentation`_ for detail,
+- Minikube places ``host.minikube.internal`` and ``control-plane.minikube.internal`` into ``/etc/hosts``,
+- Kubernetes services' URLs with ending of ``.svc``, ``.cluster.local`` or ``.svc.cluster.local``,
+- Kubernetes service cluster IP ranges: ``10.96.0.0/12`` or what's configured via ``--service-cluster-ip-range``.
+- DNSMasq subnet range: ``172.28.0.0/30``
+
+Installation
+============
+
+With the appropriate environment variables set, follow instruction :ref:`here <aio-installation>`.
+
+.. _vagrant_proxyconf: http://tmatilai.github.io/vagrant-proxyconf/
+.. _documentation: https://minikube.sigs.k8s.io/docs/handbook/vpn_and_proxy/
diff --git a/doc/source/install/jarvis/vagrant.rst b/doc/source/install/jarvis/vagrant.rst
index f00f3ec6..7292aeb5 100644
--- a/doc/source/install/jarvis/vagrant.rst
+++ b/doc/source/install/jarvis/vagrant.rst
@@ -2,4 +2,20 @@
 Jarvis AIO Vagrant
 ==================
 
-A vagrant file is provided under `tools/deployment/vagrant`, running `vagrant up` from this directory should bring up and deploy a copy of the Jarvis AIO.
\ No newline at end of file
+.. _aio-installation:
+
+Installation
+============
+
+A vagrant file is provided under ``tools/deployment/vagrant``, running
+``vagrant up`` from this directory should bring up and deploy a copy of the
+Jarvis AIO.
+
+
+.. hint:: The recommended provider in the ``Vagrantfile`` is ``virtualbox``,
+  however, ``libvirt`` is included.
+
+
+.. note:: This document does not cover the installation of vagrant.
+  Please refer to the instructions
+  `here <https://www.vagrantup.com/docs/installation>`_.
diff --git a/tools/deployment/vagrant/Vagrantfile b/tools/deployment/vagrant/Vagrantfile
index 3a753709..e85f6543 100644
--- a/tools/deployment/vagrant/Vagrantfile
+++ b/tools/deployment/vagrant/Vagrantfile
@@ -4,6 +4,16 @@
 Vagrant.configure("2") do |config|
   config.vm.box = "generic/ubuntu2004"
 
+  if Vagrant.has_plugin?("vagrant-proxyconf")
+    config.proxy.http     = ENV["HTTP_PROXY"]
+    config.proxy.https    = ENV["HTTPS_PROXY"]
+    if ENV["NO_PROXY"].nil?
+      config.proxy.no_proxy = "localhost,127.0.0.1,10.96.0.0/12,192.168.49.0/24,192.168.99.0/24,10.0.2.15,10.244.0.0/16,172.28.0.0/30,.minikube.internal,.svc,.svc.cluster.local,jarvis.local"
+    else
+      config.proxy.no_proxy = ENV["NO_PROXY"]
+    end
+  end
+
   config.vm.synced_folder "../../../", "/airship_charts"
 
   config.vm.network "private_network", ip: "192.168.56.10"
@@ -19,9 +29,10 @@ Vagrant.configure("2") do |config|
     vb.memory = 8192
   end
 
-  config.vm.provision "shell", inline: <<-SHELL
+  config.vm.provision "shell", env: {"PRIVATE_NS" => ENV["PRIVATE_NS"]}, inline: <<-SHELL
     set -ex
     cd /airship_charts/
+    ./tools/gate/jarvis/010-pre-setup.sh
     ./tools/gate/jarvis/050-setup-development-ca.sh
     ./tools/gate/jarvis/100-deploy-k8s.sh
     ./tools/gate/jarvis/200-deploy-support.sh
@@ -29,6 +40,5 @@ Vagrant.configure("2") do |config|
     ./tools/gate/jarvis/400-deploy-harbor.sh
     ./tools/gate/jarvis/500-deploy-gerrit.sh
     ./tools/gate/jarvis/600-deploy-tekton.sh
-
   SHELL
 end
diff --git a/tools/gate/deploy-k8s.sh b/tools/gate/deploy-k8s.sh
index 008bc3db..c83c7560 100755
--- a/tools/gate/deploy-k8s.sh
+++ b/tools/gate/deploy-k8s.sh
@@ -15,14 +15,16 @@ set -ex
 export DEBCONF_NONINTERACTIVE_SEEN=true
 export DEBIAN_FRONTEND=noninteractive
 
+sudo swapoff -a
+
 # Note: Including fix from https://review.opendev.org/c/openstack/openstack-helm-infra/+/763619/
 echo "DefaultLimitMEMLOCK=16384" | sudo tee -a /etc/systemd/system.conf
 sudo systemctl daemon-reexec
 
 # Function to help generate a resolv.conf formatted file.
 # Arguments are positional:
- # 1st is location of file to be generated
- # 2nd is a custom nameserver that should be used exclusively if avalible.
+#    1st is location of file to be generated
+#    2nd is a custom nameserver that should be used exclusively if avalible.
 function generate_resolvconf() {
   local target
   target="${1}"
@@ -34,7 +36,7 @@ nameserver ${priority_nameserver}
 EOF
   fi
   local nameservers_systemd
-  nameservers_systemd="$(awk '/^nameserver/ { print $2}' /run/systemd/resolve/resolv.conf | sed '/^127.0.0./d')"
+  nameservers_systemd="$(awk '/^nameserver/ { print $2 }' /run/systemd/resolve/resolv.conf | sed '/^127.0.0./d')"
   if [[ ${nameservers_systemd} ]]; then
     for nameserver in ${nameservers_systemd}; do
       sudo -E tee --append "${target}" <<EOF
@@ -49,7 +51,7 @@ EOF
   fi
   if [[ ${priority_nameserver} ]]; then
   sudo -E tee --append "${target}" <<EOF
-options timeout:1 attempts:1'
+options timeout:1 attempts:1
 EOF
   fi
 }
@@ -73,6 +75,7 @@ sudo add-apt-repository \
 docker_resolv="$(mktemp -d)/resolv.conf"
 generate_resolvconf "${docker_resolv}"
 docker_dns_list="$(awk '/^nameserver/ { printf "%s%s",sep,"\"" $NF "\""; sep=", "} END{print ""}' "${docker_resolv}")"
+
 sudo -E mkdir -p /etc/docker
 sudo -E tee /etc/docker/daemon.json <<EOF
 {
@@ -87,6 +90,16 @@ sudo -E tee /etc/docker/daemon.json <<EOF
 }
 EOF
 
+if [ -n "${HTTP_PROXY}" ]; then
+  sudo mkdir -p /etc/systemd/system/docker.service.d
+  cat <<EOF | sudo -E tee /etc/systemd/system/docker.service.d/http-proxy.conf
+[Service]
+Environment="HTTP_PROXY=${HTTP_PROXY}"
+Environment="HTTPS_PROXY=${HTTPS_PROXY}"
+Environment="NO_PROXY=${NO_PROXY}"
+EOF
+fi
+
 sudo -E apt-get update
 sudo -E apt-get install -y \
   docker-ce \
@@ -147,7 +160,7 @@ if [[ ${LOOPBACK_DOMAIN_TO_HOST} ]]; then
       --bind-interfaces \
       --address="/${LOOPBACK_DOMAIN_TO_HOST}/${host_ip}"
   sudo tee /etc/kubernetes/kubelet_resolv.conf <<EOF
-  nameserver 172.28.0.2
+nameserver 172.28.0.2
 EOF
   sudo rm -f /etc/resolv.conf
   generate_resolvconf /etc/resolv.conf 172.28.0.2
@@ -172,7 +185,8 @@ sudo -E minikube start \
   --extra-config=controller-manager.cluster-cidr=192.168.0.0/16 \
   --extra-config=kube-proxy.mode=ipvs \
   --extra-config=apiserver.service-node-port-range=1-65535 \
-  --extra-config=kubelet.resolv-conf=/etc/kubernetes/kubelet_resolv.conf
+  --extra-config=kubelet.resolv-conf=/etc/kubernetes/kubelet_resolv.conf \
+  --extra-config=kubelet.cgroup-driver=systemd
 sudo -E systemctl enable --now kubelet
 
 minikube addons list
diff --git a/tools/gate/jarvis/010-pre-setup.sh b/tools/gate/jarvis/010-pre-setup.sh
new file mode 100755
index 00000000..14cf3034
--- /dev/null
+++ b/tools/gate/jarvis/010-pre-setup.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+set -ex
+
+# NOTE: Use this script to perform necessary actions prior to start of the main
+# deployment.
+
+# Add the necessary corporate nameserver to systemd-resolved so it
+# propagates properly and prevent it from overwriting.
+# Replace 123.123.123.4 with the correct IP
+: "${HTTP_PROXY:=""}"
+: "${PRIVATE_NS:=""}"
+if [ -n "${PRIVATE_NS}" ]; then
+  sudo -E sed -i -e 's/^DNS=/#DNS=/' /etc/systemd/resolved.conf
+  sudo -E sed -i -e "/^\[Resolve\]$/a DNS=${PRIVATE_NS}" /etc/systemd/resolved.conf
+  sudo rm -f /etc/resolv.conf
+  sudo ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf
+  sudo systemctl restart systemd-resolved
+fi
diff --git a/tools/gate/jarvis/050-setup-development-ca.sh b/tools/gate/jarvis/050-setup-development-ca.sh
index 3f6c7e92..52b8a7a4 100755
--- a/tools/gate/jarvis/050-setup-development-ca.sh
+++ b/tools/gate/jarvis/050-setup-development-ca.sh
@@ -5,8 +5,8 @@ for cfssl_bin in cfssl cfssljson; do
   if ! type -p "${cfssl_bin}"; then
     version=$(curl --silent "https://api.github.com/repos/cloudflare/cfssl/releases/latest" | grep '"tag_name"' | sed -E 's/.*"([^"]+)".*/\1/')
     version_number=${version#"v"}
-    sudo curl -L -o "/usr/local/bin/${cfssl_bin}" "https://github.com/cloudflare/cfssl/releases/download/${version}/${cfssl_bin}_${version_number}_linux_amd64"
-    sudo chmod +x "/usr/local/bin/${cfssl_bin}"
+    sudo -E curl -L -o "/usr/local/bin/${cfssl_bin}" "https://github.com/cloudflare/cfssl/releases/download/${version}/${cfssl_bin}_${version_number}_linux_amd64"
+    sudo -E chmod +x "/usr/local/bin/${cfssl_bin}"
     ls "/usr/local/bin/${cfssl_bin}"
   fi
 done
diff --git a/tools/gate/jarvis/600-deploy-tekton.sh b/tools/gate/jarvis/600-deploy-tekton.sh
index 2b3a4d61..4e6941cf 100755
--- a/tools/gate/jarvis/600-deploy-tekton.sh
+++ b/tools/gate/jarvis/600-deploy-tekton.sh
@@ -12,9 +12,27 @@ for chart in tekton-pipelines tekton-triggers tekton-dashboard; do
     $(./tools/deployment/common/get-values-overrides.sh "${chart}")
 done
 
+function get_yq() {
+  version=$(curl --silent "https://api.github.com/repos/mikefarah/yq/releases/latest" | grep '"tag_name"' | sed -E 's/.*"([^"]+)".*/\1/')
+  sudo -E curl -L -o "/usr/local/bin/yq" "https://github.com/mikefarah/yq/releases/download/${version}/yq_linux_amd64"
+  sudo -E chmod +x "/usr/local/bin/yq"
+  ls "/usr/local/bin/yq"
+}
+
 ./tools/deployment/common/wait-for-pods.sh tekton-pipelines
 
 function validate() {
+
+  # if we are using the proxy we should place that into the template
+  if [ -n "${HTTP_PROXY}" ]; then
+    get_yq
+
+    # Note: This assume syntax of yq >= 4.x
+    yq eval '(.spec.resourcetemplates[].spec.params[] | select(.name=="httpProxy")).value |= env(HTTP_PROXY)' -i ./tools/gate/jarvis/resources/tekton/yaml/triggertemplates/triggertemplate.yaml
+    yq eval '(.spec.resourcetemplates[].spec.params[] | select(.name=="httpsProxy")).value |= env(HTTPS_PROXY)' -i ./tools/gate/jarvis/resources/tekton/yaml/triggertemplates/triggertemplate.yaml
+    yq eval '(.spec.resourcetemplates[].spec.params[] | select(.name=="noProxy")).value |= env(NO_PROXY)' -i ./tools/gate/jarvis/resources/tekton/yaml/triggertemplates/triggertemplate.yaml
+  fi
+
   kubectl -n tekton-pipelines apply -f ./tools/gate/jarvis/resources/tekton/yaml/role-resources/secret.yaml
   kubectl -n tekton-pipelines apply -f ./tools/gate/jarvis/resources/tekton/yaml/role-resources/serviceaccount.yaml
   kubectl -n tekton-pipelines apply -f ./tools/gate/jarvis/resources/tekton/yaml/role-resources/clustertriggerbinding-roles
@@ -88,4 +106,4 @@ EOF
   kubectl -n tekton-pipelines get pipelinerun
 }
 
-validate
\ No newline at end of file
+validate
diff --git a/tools/gate/jarvis/resources/tekton/yaml/triggertemplates/triggertemplate.yaml b/tools/gate/jarvis/resources/tekton/yaml/triggertemplates/triggertemplate.yaml
index 86a9197a..4dba5570 100644
--- a/tools/gate/jarvis/resources/tekton/yaml/triggertemplates/triggertemplate.yaml
+++ b/tools/gate/jarvis/resources/tekton/yaml/triggertemplates/triggertemplate.yaml
@@ -24,4 +24,10 @@ spec:
       - name: gitrevision
         value: $(tt.params.gitrevision)
       - name: message
-        value: $(tt.params.message)
\ No newline at end of file
+        value: $(tt.params.message)
+      - name: httpProxy
+        value: ""
+      - name: httpsProxy
+        value: ""
+      - name: noProxy
+        value: "172.28.0.2,localhost,127.0.0.1,10.96.0.0/12,192.168.49.0/24,192.168.99.0/24,107.124.202.156,10.0.2.15,10.244.0.0/16,.minikube.internal,.svc,.svc.cluster.local,jarvis.local,jarvis"