diff --git a/README.md b/README.md
index 6c82cd8..23be1d0 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,289 @@
-# Deployment of SPO data processing to VM
+# Deployment of SPO Data Processing Pipeline
 
-The project uses ansible to deploy a data processing pipeline for Smartphone Pressure Obsersvations (SPO) to a virtual machine (VM). The pipeline is designed to process and analyze data from the SPO project, which involves collecting pressure data from smartphones.
+This project deploys a data processing pipeline for **Smartphone Pressure Observations (SPO)** to a virtual machine using **Ansible** and **Docker**.
 
-To manually deploy the pipeline, run the following command:
+The pipeline retrieves pressure observations from **Firebase**, processes them, and:
+
+- Sends observations to **ESOH**
+- Stores raw JSON data in **ECMWF Object Storage (S3-compatible)**
+- Deletes processed data from **Firebase after successful storage**
+
+The pipeline is executed inside **Docker containers** and scheduled via **cron** to run periodically.
+
+---
+
+# Architecture Overview
+
+The deployed pipeline performs the following steps:
+
+1. Fetch SPO observations from **Firebase**
+2. Convert observations into **ESOH-compatible features**
+3. Upload features to **ESOH**
+4. Store raw observation data in **ECMWF Object Storage**
+5. Delete processed data from Firebase after successful storage
+
+If ESOH upload fails, the pipeline retries up to **5 times** before continuing.  
+Firebase deletion depends on **successful storage in object storage**, ensuring that no data is lost.
+
+---
+
+# Deployment Requirements
+
+The deployment requires:
+
+- An **EWC VM**
+- **Docker** installed on the VM (handled by Ansible)
+- **Ansible** installed locally
+- **SSH access** to the VM
+- **Firebase credential files**
+- **Object storage credentials**
+- **ESOH credentials**
+
+---
+
+# Repository Structure
+
+```
+ansible/
+ ├── ewc.yml
+ ├── inventory
+ └── roles/
+      └── spo-pipeline/
+          ├── tasks/
+          │    └── main.yaml
+          └── vars/
+               ├── main.yml
+               └── credentials.yml
+
+spo_firebase_fetcher/
+ ├── fetcher.py
+ └── firebase_config.py
+
+Dockerfile
+pyproject.toml
+README.md
+```
+
+---
+
+# Configuration
+
+## Main configuration
+
+`ansible/roles/spo-pipeline/vars/main.yml`
+
+Example:
+
+```yaml
+fetcher_image: "your-registry/spo-firebase-fetcher:latest"
+
+fetcher_apps:
+  - dmi
+  - sfs
+
+spo_base_path: "/opt/spo"
+
+object_store_endpoint: "https://object-store.os-api.cci1.ecmwf.int"
+object_store_bucket: "spo-firebase-data"
+object_store_region: "default"
+```
+
+---
+
+## Credentials
+
+Credentials should be stored in:
+
+```
+ansible/roles/spo-pipeline/vars/credentials.yml
+```
+
+Example:
+
+```yaml
+object_store_access_key: "YOUR_ACCESS_KEY"
+object_store_secret_key: "YOUR_SECRET_KEY"
+
+esoh_username: "YOUR_ESOH_USERNAME"
+esoh_password: "YOUR_ESOH_PASSWORD"
+```
+
+For security, this file should be encrypted using **Ansible Vault**.
+
+Example:
+
+```bash
+ansible-vault encrypt ansible/roles/spo-pipeline/vars/credentials.yml
+```
+
+---
+
+# Firebase Credential Files
+
+The deployment expects Firebase credential files on the VM:
+
+```
+/opt/spo/dmiapp_firebase.json
+/opt/spo/sfsapp_firebase.json
+```
+
+These files are mounted inside the container as:
+
+```
+/creds/credentials.json
+```
+
+---
+
+# Docker Image
+
+The Docker image runs the SPO fetcher:
+
+```
+python -m spo_firebase_fetcher.fetcher
+```
+
+The container receives configuration through environment variables provided by Ansible.
+
+---
+
+# Deploying the Pipeline
+
+To deploy the pipeline to the VM:
+
+```bash
+uv run ansible-playbook \
+  ansible/ewc.yml \
+  --inventory ansible/inventory \
+  --user <ewc_user> \
+  --private-key <private_key> \
+  --become
+```
+
+Example:
+
+```bash
+uv run ansible-playbook \
+  ansible/ewc.yml \
+  --inventory ansible/inventory \
+  --user elbadmin \
+  --private-key ~/.ssh/id_ewc \
+  --become
+```
+
+If sudo requires a password, include:
+
+```bash
+--ask-become-pass
+```
+
+---
+
+# What the Playbook Does
+
+The playbook performs the following actions:
+
+1. Installs Docker on the VM
+2. Pulls the SPO fetcher Docker image
+3. Runs one container per SPO app (`dmi`, `sfs`)
+4. Mounts Firebase credential files
+5. Injects object storage and ESOH credentials
+6. Configures cron jobs to run the fetcher every 10 minutes
+
+---
+
+# Running Containers
+
+After deployment, the following containers will run:
+
+```
+firebase-fetcher-dmi
+firebase-fetcher-sfs
+```
+
+---
+
+# Monitoring the Pipeline
+
+Check running containers:
+
+```bash
+docker ps
+```
+
+Check logs:
+
+```bash
+docker logs firebase-fetcher-dmi
+```
+
+Example log output:
+
+```
+Sending 42 feature(s) to ESOH
+ESOH upload successful
+Uploaded spo_data_dmi_20240601T120000.json
+Deleted data from Firebase
+```
+
+---
+
+# Cron Scheduling
+
+The pipeline runs every **10 minutes** via cron.
+
+Example cron entry:
+
+```
+*/10 * * * * docker restart firebase-fetcher-dmi
+```
+
+---
+
+# Local Testing
+
+To run the fetcher locally without object storage:
+
+```bash
+pdm run python -m spo_firebase_fetcher.fetcher \
+  --cred_path path/to/firebase.json \
+  --app dmi \
+  --time_limit 1 \
+  --no_s3
+```
+
+---
+
+# Data Safety
+
+The pipeline is designed to prevent data loss:
+
+- ESOH upload is retried **5 times**
+- Raw data is stored in object storage
+- Firebase data is deleted **only after successful storage**
+
+---
+
+# Troubleshooting
+
+### Check container logs
+
+```bash
+docker logs firebase-fetcher-dmi
+```
+
+### Verify object storage connectivity
+
+Check that environment variables are present inside the container:
+
+```bash
+docker inspect firebase-fetcher-dmi
+```
+
+### Verify Firebase credential mounting
 
 ```bash
-uv run ansible-playbook ansible/ewc.yml --inventory ansible/inventory --user <ewc_user> --private-key <private_key>
+docker exec -it firebase-fetcher-dmi ls /creds
 ```
-This command will execute the Ansible playbook defined in `playbook.yml` using the inventory file located in `inventory/hosts`. The playbook will set up the necessary environment and dependencies for the SPO data processing pipeline on the VM.
+
+---
diff --git a/ansible/inventory b/ansible/inventory
index 6439cb5..3f2a08e 100644
--- a/ansible/inventory
+++ b/ansible/inventory
@@ -3,4 +3,4 @@
 # Static inventory of servers
 ##############################################
 [spo-dev]
-spo-data-processor ansible_host=<ewc_ip_adress> ansible_port=22 ansible_python_interpreter=/usr/bin/python3
+spo-data-processor ansible_host=136.156.128.75 ansible_port=22 ansible_python_interpreter=/usr/bin/python3 ansible_user=elbadmin
diff --git a/ansible/roles/spo-pipeline/tasks/main.yml b/ansible/roles/spo-pipeline/tasks/main.yml
index dcb653c..7e70f71 100644
--- a/ansible/roles/spo-pipeline/tasks/main.yml
+++ b/ansible/roles/spo-pipeline/tasks/main.yml
@@ -1,12 +1,69 @@
 ---
-
 #####################
 # Include vars
 #####################
 
-- name: Include role environment variables
+- name: Include role variables
+  include_vars:
+    file: "{{ role_path }}/vars/main.yml"
+
+- name: Include role credentials
   include_vars:
-    dir: "vars"
-    extensions:
-      - "yml"
+    file: "{{ role_path }}/vars/credentials.yml"
+
+- name: Install Docker engine
+  apt:
+    name: docker.io
+    state: present
+    update_cache: yes
+  become: yes
+
+- name: Ensure Docker service is running
+  service:
+    name: docker
+    state: started
+    enabled: yes
+  become: yes
+
+- name: Pull the Firebase Fetcher image
+  community.docker.docker_image:
+    name: "{{ fetcher_image }}"
+    source: pull
+  become: yes
+
+- name: Show which creds file we will mount
+  debug:
+    msg: "→ {{ spo_base_path }}/{{ item }}app_firebase.json"
+  loop: "{{ fetcher_apps }}"
+
+- name: Run one fetcher container per app
+  community.docker.docker_container:
+    name: "firebase-fetcher-{{ item }}"
+    image: "{{ fetcher_image }}"
+    state: started
+    restart_policy: "no"
+    volumes:
+      - "{{ spo_base_path }}/{{ item }}app_firebase.json:/creds/credentials.json:ro"
+    env:
+      OBJECT_STORE_ENDPOINT: "{{ object_store_endpoint }}"
+      OBJECT_STORE_BUCKET: "{{ object_store_bucket }}"
+      OBJECT_STORE_REGION: "{{ object_store_region }}"
+      OBJECT_STORE_ACCESS_KEY: "{{ object_store_access_key }}"
+      OBJECT_STORE_SECRET_KEY: "{{ object_store_secret_key }}"
+      ESOH_USERNAME: "{{ esoh_username }}"
+      ESOH_PASSWORD: "{{ esoh_password }}"
+    command:
+      - "--cred_path"
+      - "/creds/credentials.json"
+      - "--app"
+      - "{{ item }}"
+  loop: "{{ fetcher_apps }}"
+  become: yes
 
+- name: Set up cron job to restart fetcher containers every 10 minutes
+  cron:
+    name: "Restart firebase-fetcher-{{ item }}"
+    minute: "*/10"
+    job: "docker restart firebase-fetcher-{{ item }}"
+  loop: "{{ fetcher_apps }}"
+  become: yes
\ No newline at end of file
diff --git a/ansible/roles/spo-pipeline/vars/main.yml b/ansible/roles/spo-pipeline/vars/main.yml
index 2e476d7..b9374b2 100644
--- a/ansible/roles/spo-pipeline/vars/main.yml
+++ b/ansible/roles/spo-pipeline/vars/main.yml
@@ -1,2 +1,17 @@
 ---
 user_home: '/home/{{ ansible_user }}'
+
+# Docker built locally
+fetcher_image: "spo-firebase-fetcher:latest"
+
+# Which Firebase fetchers to run
+fetcher_apps:
+  - dmi
+  - sfs
+
+# Base path on the target host where JSON creds live
+spo_base_path: "/home/elbadmin/spo_firebase_fetcher/spo_firebase_fetcher"
+
+object_store_endpoint: "https://object-store.os-api.cci1.ecmwf.int"
+object_store_bucket: "spo-firebase-data"
+object_store_region: "default"
\ No newline at end of file