Unable to access vault ui while running vault in docker: 404 page not found - hashicorp-vault

Question

I am running vault in docker like:
$ docker run -it --rm -p 8200:8200 vault:0.9.1
I have unsealed the vault:
$ VAULT_ADDR=http://localhost:8200 VAULT_SKIP_VERIFY="true" vault operator unseal L6M8O7Xg7c8vBe3g35s25OWeruNDfaQzQ5g9UZ2bvGM=
Key Value
--- -----
Seal Type shamir
Initialized false
Sealed false
Total Shares 1
Threshold 1
Version 0.9.1
Cluster Name vault-cluster-52a8c4b5
Cluster ID 96ba7037-3c99-5b6e-272e-7bcd6e5cc45c
HA Enabled false
However, I can't access the UI http://localhost:8200/ui in firefox. The error is:
404 page not found
Do you know what I am doing wrong? Does the vault docker image in docker hub have UI compiled in it?

Answer 1

Web UI was opensourced in v0.10.0, so v0.9.1 doesn't have Web UI. Here is blog announcing release and CHANGELOG for v0.10.0 - take a look at FEATURES subsection.
To see Web UI in web browser try running this command:
$ docker run -it --rm -p 8200:8200 vault:0.10.0
However, I would suggest using more recent Vault version, as there have been many improvements and bug fixes in the meantime. Also features added in the Web UI, so if you follow latest documentation, some of the things described there might not be available in older versions.

Answer 2

I observed this behavior with the Vault 0.10.3
(https://releases.hashicorp.com/vault/0.10.3/vault_0.10.3_linux_amd64.zip)
when I put the
adjustment that enabled ui in the very bottom of the vault configuration file
(etc. config.json), so
Config that returns a 404 error looks like one below:
{
"listener": [{
"tcp": {
"address" : "0.0.0.0:8200",
"tls_disable" : 1
}
}],
"api_addr": "http://172.16.94.10:8200",
"storage": {
"consul" : {
"address" : "127.0.0.1:8500",
"path": "vault"
}
}
},
"max_lease_ttl": "10h",
"default_lease_ttl": "10h",
"ui":"true"
}
and one that works with Vault 0.10.3 has a ui in the very top of its configuration file:
{
"ui":"true",
"listener": [{
"tcp": {
"address" : "0.0.0.0:8200",
"tls_disable" : 1
}
}],
"api_addr": "http://172.16.94.10:8200",
"storage": {
"consul" : {
"address" : "127.0.0.1:8500",
"path": "vault"
}
}
},
"max_lease_ttl": "10h",
"default_lease_ttl": "10h"
}