add buils.sh script template and schedule builds

Signed-off-by: Jakub Sokołowski <jakub@status.im>

defaults/main.yml

@@ -1,19 +1,27 @@
 ---
-# shared testnet name: medalla, toledo, pyrmont, etc.
-beacon_node_network: 'medalla'
 beacon_node_service_name: 'beacon-node-{{ beacon_node_network }}'
-beacon_node_service_path: 'C:\Users\{{ beacon_node_user }}\{{ beacon_node_service_name }}'
+beacon_node_service_user_name: 'nimbus'
+beacon_node_service_user_pass: '{{ ansible_date_time.epoch | password_hash("sha512") }}'
+beacon_node_service_home: 'C:/Users/{{ beacon_node_service_user_name }}'
+beacon_node_service_path: '{{ beacon_node_service_home }}/{{ beacon_node_service_name }}'
+beacon_node_service_bin_path: '{{ beacon_node_service_path }}/bin'
 
+beacon_node_repo_url: 'https://github.com/status-im/nimbus-eth2.git'
+beacon_node_repo_branch: 'stable'
+beacon_node_repo_path: '{{ beacon_node_service_path }}/repo'
+beacon_node_build_script: '{{ beacon_node_service_path }}/build.sh'
+
+# shared testnet name: mainnet, pyrmont, prater, etc.
+beacon_node_network: 'mainnet'
 beacon_node_log_level: 'INFO'
-beacon_node_data_folder: 'shared_{{ beacon_node_network }}_0'
 beacon_node_subscribe_all: false
 beacon_node_doppelganger_detection: true
 
-# For validation
-beacon_node_valid_network_names: ["toledo", "pyrmont", "prater", "mainnet", "steklo", "nocturne"]
+# Location for all node data
+beacon_node_data_path: '{{ beacon_node_service_path }}/data/shared_{{ beacon_node_network }}_0'
 
-# Subfolders for separate read-only mounting
-beacon_node_secrets_path: '{{ beacon_node_service_path }}/data/{{ beacon_node_data_folder }}/secrets'
+# For validation
+beacon_node_valid_network_names: ["pyrmont", "prater", "mainnet", "steklo", "nocturne"]
 
 # connectivity settings
 beacon_node_discovery_port: 9000

tasks/install.yml

@@ -0,0 +1,61 @@
+---
+- name: Create service folders
+  win_file:
+    path: '{{ item }}'
+    state: 'directory'
+  with_items:
+    - '{{ beacon_node_service_path }}'
+    - '{{ beacon_node_service_bin_path }}'
+
+- name: Clone Git repository
+  win_shell: |
+    git --no-pager clone \
+      {{ beacon_node_repo_url }} \
+      {{ beacon_node_repo_path }} \
+      --branch {{ beacon_node_repo_branch }}
+  args:
+    creates: '{{ beacon_node_repo_path }}'
+
+- name: Fix repo permissions
+  win_owner:
+    path: '{{ beacon_node_repo_path }}'
+    user: '{{ beacon_node_service_user_name }}'
+
+# WARNING: There's a known issue with broken GCC mirrors:
+# TODO: Install using some other method.
+# https://github.com/ScoopInstaller/Main/issues/1752
+- name: Install GCC to compile Nim
+  win_shell: 'scoop install --global gcc'
+
+- name: Add GCC to the system wide PATH
+  win_path:
+    name: 'PATH'
+    elements: 'C:/ProgramData/scoop/apps/gcc/current/bin'
+    scope: 'machine'
+    state: 'present'
+  register: machine_path
+
+- name: Restart host for PATH change to work
+  win_reboot:
+    reboot_timeout: 160
+  when: machine_path.changed
+
+- name: Create build script
+  win_template:
+    src: 'build.sh.j2'
+    dest: '{{ beacon_node_build_script }}'
+    mode: 0750
+
+- name: Schedule node builds
+  win_scheduled_task:
+    description: 'Daily rebuild of Nimbus beacon node binaries'
+    name: '{{ beacon_node_service_name }}-build'
+    #path: '{{ beacon_node_service_path }}'
+    actions:
+      - path: '{{ beacon_node_build_script }}'
+    triggers:
+      - type: 'daily'
+        start_boundary: '2021-01-01T01:00:00'
+    username: '{{ beacon_node_service_user_name }}'
+    state: 'present'
+    enabled: true

tasks/main.yml

@@ -1,5 +1,6 @@
 ---
 - import_tasks: checks.yml
 - import_tasks: user.yml
+- import_tasks: install.yml
 - import_tasks: service.yml
 - import_tasks: firewall.yml

templates/build.sh.j2

@@ -0,0 +1,73 @@
+#!/usr/bin/env bash
+# vim: ft=sh
+set -e
+
+function headIsDetached() {
+    [[ $(git rev-parse --abbrev-ref --symbolic-full-name HEAD) == "HEAD" ]];
+}
+
+function binaryExists() {
+    ls -l build/nimbus_beacon_node_${COMMIT} 2>&1 1>/dev/null
+}
+
+function fetchChanges() {
+    # We cannot use "git pull" in here, because history may be changed upstream
+    git fetch
+    git reset --hard "origin/${BRANCH}"
+}
+
+function buildBinaries() {
+    # Just one process so it doesn't affect the running beacon nodes.
+    make -j1 update V=3
+    make -j1 nimbus_beacon_node nimbus_signing_process V=3 \
+        LOG_LEVEL="TRACE" NIMFLAGS="-d:testnet_servers_image -d:noSignalHandler"
+
+    # Rename binaries to match commit the were built from.
+    mv "build/nimbus_beacon_node" "build/nimbus_beacon_node_${COMMIT}"
+    mv "build/nimbus_signing_process" "build/nimbus_signing_process_${COMMIT}"
+
+    # Delete copies that are older than 7 days
+    find build -mtime +7 -exec rm '{}' \+
+}
+
+#-------------------------------------------------------------------------------
+
+BRANCH="{{ beacon_node_repo_branch }}"
+BUILD_USER="{{ beacon_node_service_user_name }}" 
+INSTALL_PATH="{{ beacon_node_service_bin_path }}"
+
+if [[ "${USER}" != "${BUILD_USER}" ]]; then
+    echo "Incorrect user: ${USER}" >&2
+    echo "Expected: ${BUILD_USER}" >&2
+    exit 1
+fi
+
+# Build the Beacon node binaries
+pushd repo >/dev/null
+
+# Detached HEAD means we're probably on a tag
+if headIsDetached; then
+    echo " >>> Deatached HEAD, nothing to fetch."
+else
+    echo " >>> Fetching changes..."
+    fetchChanges
+fi
+
+COMMIT=$(git rev-parse --short=8 HEAD)
+
+if binaryExists && [[ "$1" != "--force" ]]; then
+    echo " >>> Binary already built"
+else
+    echo " >>> Building binaries..."
+    buildBinaries
+fi
+
+popd >/dev/null
+
+echo " >>> Install binaries..."
+cp "repo/build/nimbus_beacon_node_${COMMIT}" "${INSTALL_PATH}"
+cp "repo/build/nimbus_signing_process_${COMMIT}" "${INSTALL_PATH}"
+
+# TODO, deploy binary
+
+echo " >>> SUCCESS"