# PKI
## root ca
    vault secrets enable -path=pki_root pki
    vault secrets tune -max-lease-ttl=87600h pki_root

    vault write -field=certificate pki_root/root/generate/internal \
         common_name="unkin.net" \
         issuer_name="UNKIN_ROOTCA_2024" \
         ttl=87600h > unkinroot_2024_ca.crt

    vault read pki_root/issuer/$(vault list -format=json pki_root/issuers/ | jq -r '.[]') | tail -n 6

    vault write pki_root/roles/2024-servers allow_any_name=true

    vault write pki_root/config/urls \
         issuing_certificates="$VAULT_ADDR/v1/pki_root/ca" \
         crl_distribution_points="$VAULT_ADDR/v1/pki_root/crl"

## intermediate
    vault secrets enable -path=pki_int pki
    vault secrets tune -max-lease-ttl=43800h pki_int

    vault write -format=json pki_int/intermediate/generate/internal \
         common_name="unkin.net Intermediate Authority" \
         issuer_name="UNKIN_VAULTCA_2024" \
         | jq -r '.data.csr' > pki_intermediate.csr

    vault write -format=json pki_root/root/sign-intermediate \
         issuer_ref="UNKIN_ROOTCA_2024" \
         csr=@pki_intermediate.csr \
         format=pem_bundle ttl="43800h" \
         | jq -r '.data.certificate' > intermediate.cert.pem

    vault write pki_int/intermediate/set-signed certificate=@intermediate.cert.pem

## create role
    vault write pki_int/roles/servers_default \
        issuer_ref="$(vault read -field=default pki_int/config/issuers)" \
        allow_ip_sans=true \
        allowed_domains="unkin.net, *.unkin.net, localhost" \
        allow_subdomains=true \
        allow_glob_domains=true \
        allow_bare_domains=true \
        enforce_hostnames=true \
        allow_any_name=true \
        max_ttl="2160h" \
        key_bits=4096 \
        country="Australia"

## test generating a domain cert
    vault write pki_int/issue/servers_default common_name="test.unkin.net" ttl="24h"
    vault write pki_int/issue/servers_default common_name="test.main.unkin.net" ttl="24h"
    vault write pki_int/issue/servers_default common_name="*.test.main.unkin.net" ttl="24h"

## remove expired certificates
    vault write pki_int/tidy tidy_cert_store=true tidy_revoked_certs=true

# AUTH
## enable approles
    vault auth enable approle

# CERTMANAGER
## create certmanager policy and token, limit to puppetmaster
    cat <<EOF > certmanager.hcl
    path "pki_int/issue/*" {
      capabilities = ["create", "update", "read"]
    }
    path "pki_int/renew/*" {
      capabilities = ["update"]
    }
    path "pki_int/cert/*" {
      capabilities = ["read"]
    }
    EOF

    vault policy write certmanager certmanager.hcl

    vault write auth/approle/role/certmanager \
        bind_secret_id=false \
        token_policies="certmanager" \
        token_ttl=30s \
        token_max_ttl=30s \
        token_bound_cidrs="198.18.17.3/32,198.18.13.32/32,198.18.13.33/32,198.18.13.34/32"

## get the certmanager approle id
    vault read -field=role_id auth/approle/role/certmanager/role-id


# SSH Hostkey Signing

## create ssh engine, key, set ttl
    vault secrets enable -path=ssh-host-signer ssh
    vault write ssh-host-signer/config/ca generate_signing_key=true
    vault secrets tune -max-lease-ttl=87600h ssh-host-signer

## create role
    vault write ssh-host-signer/roles/hostrole \
        key_type=ca \
        algorithm_signer=rsa-sha2-256 \
        ttl=87600h \
        allow_host_certificates=true \
        allowed_domains="unkin.net" \
        allow_subdomains=true \
        allow_baredomains=true

## create policy to use hostrole
    cat <<EOF > sshsign-host.hcl
    path "ssh-host-signer/sign/hostrole" {
        capabilities = ["create", "update"]
    }
    EOF

    vault policy write sshsign-host-policy sshsign-host.hcl

    vault write auth/approle/role/sshsign-host-role \
        bind_secret_id=false \
        token_policies="sshsign-host-policy" \
        token_ttl=30s \
        token_max_ttl=30s \
        token_bound_cidrs="198.18.17.3/32,198.18.13.32/32,198.18.13.33/32,198.18.13.34/32"

## get the sshsign-host-role approle id
    vault read -field=role_id auth/approle/role/sshsign-host-role/role-id