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Add policy for auditing Storage Accounts having configured firewall r… #12

Add policy for auditing Storage Accounts having configured firewall r…

Add policy for auditing Storage Accounts having configured firewall r… #12

name: Confirm Policy Definition has Unique ID and does not conflict with Built-In Policies
on:
pull_request:
branches:
- main
jobs:
# -------------------------------------------------------------
# Using AzAdvertizer to check for Built-In Policy Conflicts
# -------------------------------------------------------------
# Event `pull_request`: Returns all changed pull request files.
# --------------------------------------------------------------
validate-built-in-policy-id:
name: Validate Policy Definition Unique ID
runs-on: ubuntu-latest
permissions:
pull-requests: read
steps:
- uses: actions/checkout@v4
- name: Get changed files
id: changed_files
uses: tj-actions/changed-files@v45
with:
separator: "§" # we need a character which isn't used within a file name or path
- name: Validate Policy Definition Unique ID & Check for Built-In Policy Conflicts
if: ${{ steps.changed_files.outputs.any_changed }} == 'true'
shell: bash
run: >
echo 'Step 1: Checking if azurepolicy.json file exists...'
filesString="${{ steps.changed_files.outputs.all_changed_files }}"
echo " Info: found changed files - $filesString"
IFS='§' read -ra files <<< "$filesString"
echo " Info: changed files converted to array, ready to check each file..."
for rawfile in "${files[@]}"; do
echo " Checking file name: ${rawfile}"
# Trim backspaces from the file name
file=$(echo $rawfile | tr -d '\\')
echo " Trimmed file name: ${file}"
echo ""
if echo "$file" | grep -q 'github/workflows'; then
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ' | |'
echo ' | - VALIDATION EXEMPT - |'
echo ' | .github/workflows directory detected |'
echo ' | This directory is exempt from policy validation |'
echo ' | |'
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
exit 0
fi
if echo "$file" | grep -q 'Scripts/'; then
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ' | |'
echo ' | - VALIDATION EXEMPT - |'
echo ' | Scripts directory detected |'
echo ' | This directory is exempt from policy validation |'
echo ' | |'
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
exit 0
fi
if echo "$file" | grep -q 'azurepolicy.json'; then
policyFile=$file
echo " Success: azurepolicy.json file found... policyFile <-- $file"
break
fi
done
if [ ! -f "$policyFile" ]; then
echo ""
echo ""
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ' | |'
echo ' | - VALIDATION FAILED - |'
echo ' | File NOT FOUND: azurepolicy.json |'
echo ' | |'
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ""
echo ""
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ' | |'
echo ' | - NEXT STEPS - |'
echo ' | Please make sure your main Policy Definition file is included, |'
echo ' | and the file is named azurepolicy.json. |'
echo ' | |'
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ""
echo ""
exit 1
fi
echo "Step 2: Attempting to return policy name from $policyFile"
policyName=$(jq -r '.name' "${policyFile}")
echo " Success: name field found in azurepolicy.json... policyName <-- ${policyName}"
if [ -z "$policyName" ]; then
echo ""
echo ""
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ' | |'
echo ' | - VALIDATION FAILED - |'
echo ' | Policy Name not found in azurepolicy.json file |'
echo ' | |'
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ""
echo ""
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ' | |'
echo ' | - NEXT STEPS - |'
echo ' | Please make sure a name is present in azurepolicy.json |'
echo ' | Please make sure the name is a valid GUID |'
echo ' | |'
echo ' | What is a GUID? https://www.rfc-editor.org/rfc/rfc4122 |'
echo ' | Make a new GUID in PowerShell: https://aka.ms/new-guid |'
echo ' | |'
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ""
echo ""
exit 1
elif [[ ! $policyName =~ ^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$ ]]; then
echo ""
echo ""
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ' | |'
echo ' | - VALIDATION FAILED - |'
echo ' | Policy name is not a valid GUID |'
echo ' | |'
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ""
echo ""
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ' | |'
echo ' | - NEXT STEPS - |'
echo ' | Please change the policy name to a unique GUID |'
echo ' | |'
echo ' | What is a GUID? https://www.rfc-editor.org/rfc/rfc4122 |'
echo ' | Make a new GUID in PowerShell: https://aka.ms/new-guid |'
echo ' | |'
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ""
echo ""
exit 1
else
echo " Success: Policy Name $policyName exists and is a valid GUID."
echo 'Step 3: Sending request to AzAdvertizer API to search for Policy Name in existing resources.'
response=$(curl -s "https://www.azadvertizer.net/AzPolicyAdvertizerRuleThemAllData.json")
if [ -z "$response" ]; then
echo ' Error: API Response - No response from AzAdvertizer.'
exit 1
else
echo ' Success: Response from AzAdvertizer received.'
fi
if [ "$(echo $response | jq length)" -le 0 ]; then
echo ' Error: API Response - No data found in response body.'
echo ' Next Steps: This one is on us, please open a GitHub issue if you see this error.'
exit 1
else
echo ' Success: Data found in response body.'
fi
echo " Info: Searching for policy name in response body..."
filteredResponse=$(echo $response | jq --arg a "$policyName" '.[] | select(.n == $a)')
echo " Info: Search complete"
if [ ! -z "$filteredResponse" ]; then
echo ""
echo ""
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ' | |'
echo ' | - VALIDATION FAILED - |'
echo ' | Policy name exists as a Built-In Azure Policy Definition |'
echo ' | |'
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ""
echo " This: ${policyName} == built-in: $(echo $filteredResponse | jq -r '.n')"
echo ""
echo ' Conflicting Built-In Policy Definition Details:'
echo " Name: $(echo $filteredResponse | jq -r '.n')"
echo " Display Name: $(echo $filteredResponse | jq -r '.def' | jq -r '.displayName')"
echo " Description: $(echo $filteredResponse | jq -r '.def' | jq -r '.description')"
echo ""
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ' | |'
echo ' | - NEXT STEPS - |'
echo ' | Please change the policy name to a unique GUID |'
echo ' | Please do not submit only slightly altered built-in policies |'
echo ' | |'
echo ' | What is a GUID? https://www.rfc-editor.org/rfc/rfc4122 |'
echo ' | Make a new GUID in PowerShell: https://aka.ms/new-guid |'
echo ' | |'
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ""
echo ""
exit 1
else
echo ' Success: GUID not found in Built-In Azure Policy Repo.'
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
echo ' | |'
echo ' | - VALIDATION SUCCESS - |'
echo ' | Policy name is a valid GUID |'
echo ' | and does not match existing built-in Policy Definition |'
echo ' | |'
echo ' \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////'
exit 0
fi
fi