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40ea30e4c3
init_knoe_auth.sh: provisions KDC secrets via 1Password, applies GKE manifests init_knoe_users.sh: creates Kerberos principals for initial contributors kerberos-configmap.yaml: krb5.conf for OpenBao Kerberos auth (KNOE.DEV realm) prole-auth-deployment.yaml: k3s auth + kdc sidecar deployment for homelab prole-kdc-configmap.yaml: k3s KDC config for homelab Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
116 lines
3.8 KiB
YAML
116 lines
3.8 KiB
YAML
apiVersion: v1
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kind: ConfigMap
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metadata:
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name: knoe-kdc-config
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data:
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krb5.conf: |
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[libdefaults]
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default_realm = PROLE.LOCAL
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dns_lookup_realm = false
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dns_lookup_kdc = false
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[realms]
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PROLE.LOCAL = {
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kdc = 127.0.0.1
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admin_server = 127.0.0.1
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}
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PROLE.ORG = {
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kdc = myrddin.prole.org
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admin_server = myrddin.prole.org
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}
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[capaths]
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PROLE.LOCAL = {
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PROLE.ORG = .
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}
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PROLE.ORG = {
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PROLE.LOCAL = .
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}
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kdc.conf: |
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[kdcdefaults]
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kdc_ports = 88
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kdc_tcp_ports = 88
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[realms]
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PROLE.LOCAL = {
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database_name = /var/lib/krb5kdc/principal
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admin_keytab = FILE:/etc/krb5kdc/kadm5.keytab
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acl_file = /etc/krb5kdc/kadm5.acl
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key_stash_file = /etc/krb5kdc/stash
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max_life = 10h 0m 0s
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max_renewable_life = 7d 0h 0m 0s
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default_principal_flags = +preauth
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}
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kadm5.acl: |
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admin/admin@PROLE.LOCAL *
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entrypoint.sh: |
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#!/usr/bin/env bash
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set -euo pipefail
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export DEBIAN_FRONTEND=noninteractive
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realm="${PROLE_KDC_REALM:-PROLE.ORG}"
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admin_principal="${PROLE_KDC_ADMIN_PRINCIPAL:-admin/admin}"
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if [[ "${admin_principal}" != *"@"* ]]; then
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admin_principal="${admin_principal}@${realm}"
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fi
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if ! command -v krb5kdc >/dev/null 2>&1; then
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echo "Installing Kerberos packages..."
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echo "krb5-config krb5-config/default_realm string ${realm}" | debconf-set-selections || true
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echo "krb5-config krb5-config/kerberos_servers string 127.0.0.1" | debconf-set-selections || true
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echo "krb5-config krb5-config/admin_server string 127.0.0.1" | debconf-set-selections || true
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apt-get update
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apt-get install -y --no-install-recommends krb5-kdc krb5-admin-server krb5-user dnsutils ca-certificates
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rm -rf /var/lib/apt/lists/*
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fi
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mkdir -p /etc/krb5kdc /var/lib/krb5kdc
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if [[ -f /opt/knoe-kdc/krb5.conf ]]; then
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cp /opt/knoe-kdc/krb5.conf /etc/krb5.conf
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fi
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if [[ -f /opt/knoe-kdc/kdc.conf ]]; then
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cp /opt/knoe-kdc/kdc.conf /etc/krb5kdc/kdc.conf
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fi
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if [[ -f /opt/knoe-kdc/kadm5.acl ]]; then
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cp /opt/knoe-kdc/kadm5.acl /etc/krb5kdc/kadm5.acl
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fi
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if [[ -z "${PROLE_KDC_MASTER_PASSWORD:-}" ]]; then
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echo "ERROR: Missing required env PROLE_KDC_MASTER_PASSWORD (secret 'knoe-kdc-secrets/master_password')." >&2
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exit 1
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fi
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if [[ -z "${PROLE_KDC_ADMIN_PASSWORD:-}" ]]; then
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echo "ERROR: Missing required env PROLE_KDC_ADMIN_PASSWORD (secret 'knoe-kdc-secrets/admin_password')." >&2
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exit 1
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fi
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if [[ ! -f /var/lib/krb5kdc/principal ]]; then
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echo "Initializing realm database for ${realm}..."
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kdb5_util create -s -r "${realm}" -P "${PROLE_KDC_MASTER_PASSWORD}"
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fi
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if ! kadmin.local -q "get_principal ${admin_principal}" >/dev/null 2>&1; then
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echo "Creating admin principal ${admin_principal}..."
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kadmin.local -q "addprinc -pw ${PROLE_KDC_ADMIN_PASSWORD} ${admin_principal}"
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fi
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# admin user principal for UI login (uses master password)
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if ! kadmin.local -q "get_principal admin@${realm}" >/dev/null 2>&1; then
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echo "Creating admin user principal admin@${realm}..."
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kadmin.local -q "addprinc -pw ${PROLE_KDC_MASTER_PASSWORD} admin@${realm}"
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fi
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# guest user principal (read-only)
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if ! kadmin.local -q "get_principal guest@${realm}" >/dev/null 2>&1; then
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echo "Creating guest user principal guest@${realm}..."
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kadmin.local -q "addprinc -pw ${PROLE_KDC_GUEST_PASSWORD:-changeme} guest@${realm}"
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fi
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echo "Starting krb5kdc and kadmind ..."
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krb5kdc -n &
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sleep 0.5
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if ! pgrep -x krb5kdc >/dev/null 2>&1; then
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echo "ERROR: krb5kdc failed to start. Check /var/log/ (syslog) for details." >&2
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exit 1
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fi
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exec kadmind -nofork
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