Vault by HasiCorp

Ensure vault can lock memory mlock

$ sudo setcap CAP_IPC_LOCK=  <bin>/9s/vault

Config

storage "file" {
  path = "/home/xxx/vault-data"
  address = "127.0.0.1:8500"
   path    = "vault"
}

#storage "etcd" {
#  address  = "http://localhost:2379"
#    etcd_api = "v3"
#    }

listener "tcp" {
      address     = "127.0.0.1:8200"
        #tls_disable = 1
        ##Cert + intermediate in concat
        tls_cert_file = "/home/xxx/ssl/concat_dev.pem"
        tls_key_file = "/home/xx/ssl/dev.key"
        }

#telemetry {
#          statsite_address = "127.0.0.1:8125"
#           disable_hostname = true
#            }

Got error with client no initialized

$ vault status
Error checking seal status: Error making API request.

URL: GET https://localdomain.com:8200/v1/sys/seal-status
Code: 400. Errors:

* server is not yet initialized

initialize with client

$ vault operator init
Unseal Key 1: eTa0LIlJ1fw3WIFzF4TLLrQQh5zZIQDVML5hvLh8b/0n
Unseal Key 2: cQPwYWRJx9U6CsydgP2z7lVEkOgvSy6dYBsdSF2Cmvld
Unseal Key 3: zYo0SyAwce+pgtiC4gXUR8mBwOxxAFgtKrpSMMdxSyZT
Unseal Key 4: o/u+3FjpDRUV+Bz2bbJX43lo67idFy9Ly2q+aG5r659x
Unseal Key 5: NzHAl/80p7C0WkvuAOl2G591LOqBvOxV4+Q8Kg2/0njS

Initial Root Token: 41f05975-248a-784d-cb10-96ca0d7c36a7

e.g. #vault init -key-shares=3 -key-threshold=2

now unseal doing the following 3 times with 3 of the keys
```
vault unseal
```

Setup systemd https://www.digitalocean.com/community/tutorials/how-to-securely-manage-secrets-with-hashicorp-vault-on-ubuntu-16-04

save first value in default kv /secret

$ export rt=41f05975-248a-784d-cb10-96ca0d7c36a7
$ VAULT_TOKEN=$rt vault write secret/mykey1 value=mysecret1
Success! Data written to: secret/mykey1

Generate a root otp

$ vault operator generate-root -generate-otp
kmXqMZ/A9BqSEf8pe/PtLQ==

enable transit encryption etc {{

$ VAULT_TOKEN=$rt vault secrets enable transit Success! Enabled the transit secrets engine at: transit/

$ VAULT_TOKEN=$rt vault write transit/keys/my-key3 type=ecdsa-p256 Success! Data written to: transit/keys/my-key3

}}}

enable the pki / ca engine

$ VAULT_TOKEN=$rt vault secrets enable pki
Success! Enabled the pki secrets engine at: pki/

...