diff --git a/docs/README.md b/docs/README.md
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+++ b/docs/README.md
@@ -10,3 +10,7 @@ You can also see sequence diagrams for the [container preparation](https://githu
 ## CLI
 
 Documentation of the CLI of the server and the client are available under `cli/`. Those documentations are exports of the `python3 code --help` with further explanation if needed.
+
+## Configuration
+
+Configuration is available under `configuration/` directory. Client and server `ini` files configuration references are available.
diff --git a/docs/configuration/client.md b/docs/configuration/client.md
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+# Client
+
+Client's configuration has to respect `ini` configuration format and essentially compiles informations for the client to connect to servers services.
+
+## Example configuration :
+
+```ini
+[spire-server]
+address = localhost
+port = 31147
+trust-domain = hpcs 
+
+[hpcs-server]
+url = http://localhost:10080
+
+[vault]
+url = http://localhost:8200
+
+[supercomputer]
+address = lumi.csc.fi
+username = etellier
+```
+
+## Reference
+
+### `spire-server` 
+
+This section describes the connection to the spire-server
+- `address` : address of the spire-server
+- `port` : port nomber on which spire-server api is exposed
+- `trust-domain` : `trust-domain` of the spire-server (from spire-server configuration or hpcs administration can provide it to you)
+
+### `hpcs-server`
+
+This section describes the hpcs-server
+- `url` : complete base url to the hpcs server api
+
+### `vault`
+
+This section describes the vault
+- `url` : complete base url to the vault
+
+
+### `supercomputer`
+
+This section describes the supercomputer to run jobs on
+- `address` : the address to the supercomputer login-node
+- `username` : the user to use to connect to the supercomputer
diff --git a/docs/configuration/server.md b/docs/configuration/server.md
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+# Client
+
+Client's configuration has to respect `ini` configuration format and essentially compiles informations for the client to connect to servers services.
+
+## Example configuration :
+
+```ini
+[spire-server]
+address = "localhost"
+port = 8081
+trust-domain = hpcs
+pre-command = ""
+spire-server-bin = spire-server
+socket-path = /var/run/sockets/server/api.sock
+
+[spire-agent]
+spire-agent-socket = /tmp/spire-agent/public/api.sock
+hpcs-server-spiffeid = spiffe://hpcs/hpcs-server/workload
+
+[vault]
+url = http://vault-host:10297
+server-role = hpcs-server
+```
+
+## Reference
+
+### `spire-server` 
+
+This section describes the connection to the spire-server
+- `address` : address of the spire-server
+- `port` : port nomber on which spire-server api is exposed
+- `trust-domain` : `trust-domain` of the spire-server (from spire-server configuration or hpcs administration can provide it to you)
+- `spire-server` commands are executed directly in a subshell in order to cover various type of setups, these configs allow user to change the final command :
+  - `pre-command` :  text to add before running spire-server cli command
+  - `spire-server-bin` :  path to spire-server binary
+  - `socket-path` :  path to spire-server socket (will be append after `-socketPath`)
+
+### `spire-agent`
+
+This section describes the spire-agent setup to allow hpcs-server to use it to get and validate SVIDs
+- `spire-agent-socket` : path to spire agent socket, used to create spire-agent client connecting via the socket
+- `hpcs-server-spiffeid` : spiffeID identifying the hpcs-server workload, in general : `spiffe://hpcs/hpcs-server/workload`
+
+### `vault`
+
+This section describes the vault
+- `url` : complete base url to the vault
+- `server-role` : name of the role registered into the vault to create and update vault policies/roles and bound to the `hpcs-server-spiffeid`