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110 lines
2.7 KiB
Bash
110 lines
2.7 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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# args: eu-west-1 ROUTE53_HEALTHCHECKS
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#
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# Author: Hari Sekhon
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# Date: 2021-06-18 17:13:10 +0100 (Fri, 18 Jun 2021)
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#
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# https://github.com/HariSekhon/bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(dirname "${BASH_SOURCE[0]}")"
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# shellcheck disable=SC1090,SC1091
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. "$srcdir/lib/utils.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Returns all the AWS IPs for a given Region and Service using the AWS ip-range json API:
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https://ip-ranges.amazonaws.com/ip-ranges.json
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To get and use these IPs directly in Terraform, see the Cloudflare Firewall module in https://github.com/HariSekhon/Terraform
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Examples:
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Lists all regions and their services to filter on:
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${0##*/} list
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Get all IPs for eu-west-1 region:
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${0##*/} eu-west-1
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Get all eu-west-1 IPs for EC2, S3 or Route 53 Healthchecks:
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${0##*/} eu-west-1 EC2
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${0##*/} eu-west-1 S3
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${0##*/} eu-west-1 ROUTE53_HEALTHCHECKS
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Get global Route 53 Healthcheck IPs:
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${0##*/} GLOBAL ROUTE53_HEALTHCHECKS
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Get all Route 53 Healthcheck IPs in all regions:
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${0##*/} all ROUTE53_HEALTHCHECKS
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args="[<region> <service> | list]"
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help_usage "$@"
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url="https://ip-ranges.amazonaws.com/ip-ranges.json"
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region="${1:-}"
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service="${2:-}"
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# All regions are lowercase except for GLOBAL
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region="$(tr '[:upper:]' '[:lower:]' <<< "$region")"
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if [ "$region" = global ]; then
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region=GLOBAL
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fi
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# All Services are uppercase
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service="$(tr '[:lower:]' '[:upper:]' <<< "$service")"
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if [ "$region" = list ]; then
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curl -sS "$url" |
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jq -r '.prefixes[] | [.region, .service] | @tsv' | sort -u
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exit 0
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fi
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curl -sS "$url" |
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#jq -r ".prefixes[]" |
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#if [ -n "$region" ] && [ "$region" != all ]; then
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# #jq -r ".prefixes[] | select(.region == \"$region\") | .ip_prefix"
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# jq -r "select(.region == \"$region\")"
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#else
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# cat
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#fi |
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#if [ -n "$service" ] && [ "$service" != all ]; then
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# jq -r "select(.service == \"$service\")"
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#else
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# cat
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#fi |
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#jq -r '.ip_prefix'
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jq -r "
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.prefixes[] |
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if(\"$region\" != \"\" and \"$region\" != \"all\") then
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select(.region == \"$region\")
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else
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.
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end |
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if(\"$service\" != \"\" and \"$service\" != \"all\") then
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select(.service == \"$service\")
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else
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.
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end |
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.ip_prefix
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" # end jq script
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