100 lines
2.3 KiB
Bash
100 lines
2.3 KiB
Bash
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#!/usr/bin/env bash
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# stops the execution if a command or pipeline has an error
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set -eu
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if command -v tput >/dev/null && tput setaf 1 >/dev/null 2>&1; then
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# color codes
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RED="$(tput setaf 1)"
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RESET="$(tput sgr0)"
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fi
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ERR="${RED:-}ERROR:${RESET:-}"
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err() (
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if [ -z "${1:-}" ]; then
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cat >&2
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else
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echo "$ERR " "$@" >&2
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fi
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)
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candidate_interfaces() (
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ip -o link show |
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awk -F': ' '{print $2}' |
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sed 's/[ \t].*//;/^\(lo\|bond0\|\|\)$/d' |
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sort
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)
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validate_tinkerbell_network_interface() (
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local tink_interface=$1
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if ! candidate_interfaces | grep -q "^$tink_interface$"; then
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err "Invalid interface ($tink_interface) selected, must be one of:"
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candidate_interfaces | err
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return 1
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else
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return 0
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fi
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)
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generate_password() (
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head -c 12 /dev/urandom | sha256sum | cut -d' ' -f1
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)
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generate_envrc() (
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local tink_interface=$1
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validate_tinkerbell_network_interface "$tink_interface"
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local tink_password
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tink_password=$(generate_password)
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local registry_password
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registry_password=$(generate_password)
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cat <<EOF
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# Network interface for Tinkerbell's network
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export TINKERBELL_NETWORK_INTERFACE="$tink_interface"
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# Decide on a subnet for provisioning. Tinkerbell should "own" this
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# network space. Its subnet should be just large enough to be able
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# to provision your hardware.
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export TINKERBELL_CIDR=29
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# Host IP is used by provisioner to expose different services such as
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# tink, boots, etc.
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#
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# The host IP should the first IP in the range, and the Nginx IP
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# should be the second address.
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export TINKERBELL_HOST_IP=192.168.1.1
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# NGINX IP is used by provisioner to serve files required for iPXE boot
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export TINKERBELL_NGINX_IP=192.168.1.2
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# Tink server username and password
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export TINKERBELL_TINK_USERNAME=admin
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export TINKERBELL_TINK_PASSWORD="$tink_password"
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# Docker Registry's username and password
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export TINKERBELL_REGISTRY_USERNAME=admin
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export TINKERBELL_REGISTRY_PASSWORD="$registry_password"
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# Legacy options, to be deleted:
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export FACILITY=onprem
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export ROLLBAR_TOKEN=ignored
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export ROLLBAR_DISABLE=1
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export OSIE_DOWNLOAD_LINK=https://tinkerbell-oss.s3.amazonaws.com/osie-uploads/osie-v0-n=252,c=bc454bc,b=master.tar.gz
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EOF
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)
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main() (
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if [ -z "${1:-}" ]; then
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err "Usage: $0 network-interface-name > envrc"
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exit 1
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fi
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generate_envrc "$1"
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)
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main "$@"
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