From ec88a409c691b688dbde8ba6f79dfb730e5b7a46 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Tue, 23 Dec 2025 14:32:13 -0300
Subject: [PATCH 01/18] chore: add ethlambda to local devnet validator config

---
 local-devnet/genesis/validator-config.yaml | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/local-devnet/genesis/validator-config.yaml b/local-devnet/genesis/validator-config.yaml
index d41cce7..536db17 100644
--- a/local-devnet/genesis/validator-config.yaml
+++ b/local-devnet/genesis/validator-config.yaml
@@ -48,7 +48,7 @@ validators:
       quic: 9004
     metricsPort: 8084
     count: 1
-    
+
   - name: "lighthouse_0"
     # node id a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2
     # peer id 16Uiu2HAm7TYVs6qvDKnrovd9m4vvRikc4HPXm1WyLumKSe5fHxBv
@@ -59,3 +59,15 @@ validators:
       quic: 9005
     metricsPort: 8085
     count: 1
+
+  # TODO: generate a new keypair for this
+  - name: "ethlambda_0"
+    # node id a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2
+    # peer id 16Uiu2HAm7TYVs6qvDKnrovd9m4vvRikc4HPXm1WyLumKSe5fHxBv
+    privkey: "4fd22cf461fbeae4947a3fdaef8d533fc7fd1ef1ce4cd98e993210c18234df3f"
+    # verify /ip4/127.0.0.1/udp/9004/quic-v1/p2p/16Uiu2HAm7TYVs6qvDKnrovd9m4vvRikc4HPXm1WyLumKSe5fHxBv
+    enrFields:
+      ip: "127.0.0.1"
+      quic: 9006
+    metricsPort: 8086
+    count: 1

From 647b72812bbdf66b07bdb70b4a5d87142a7c1309 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Tue, 23 Dec 2025 15:03:08 -0300
Subject: [PATCH 02/18] chore: add ethlambda to client-cmds

---
 client-cmds/ethlambda-cmd.sh | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 client-cmds/ethlambda-cmd.sh

diff --git a/client-cmds/ethlambda-cmd.sh b/client-cmds/ethlambda-cmd.sh
new file mode 100644
index 0000000..0bb913d
--- /dev/null
+++ b/client-cmds/ethlambda-cmd.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+#-----------------------ethlambda setup----------------------
+
+binary_path="/Users/mega/lean_consensus/ethlambda/target/debug/ethlambda"
+
+# Command when running as binary
+node_binary="$binary_path"
+
+# Command when running as docker container
+# TODO: fill in docker command
+node_docker="--------------"
+
+node_setup="binary"

From b90b2f06204ba93fc86385e58f64be36eb1fb9aa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Tue, 23 Dec 2025 18:41:34 -0300
Subject: [PATCH 03/18] chore: add genesis json flag

---
 client-cmds/ethlambda-cmd.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/client-cmds/ethlambda-cmd.sh b/client-cmds/ethlambda-cmd.sh
index 0bb913d..35ad3de 100644
--- a/client-cmds/ethlambda-cmd.sh
+++ b/client-cmds/ethlambda-cmd.sh
@@ -5,7 +5,9 @@
 binary_path="/Users/mega/lean_consensus/ethlambda/target/debug/ethlambda"
 
 # Command when running as binary
-node_binary="$binary_path"
+node_binary="$binary_path \
+      --custom-genesis-json-file \"$configDir/genesis.json\" \
+"
 
 # Command when running as docker container
 # TODO: fill in docker command

From 5fa7d2e1fb0bbae475ffe1827f5fd00a9548d3b9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Mon, 5 Jan 2026 18:09:03 -0300
Subject: [PATCH 04/18] chore: add bootnodes-file option

---
 client-cmds/ethlambda-cmd.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/client-cmds/ethlambda-cmd.sh b/client-cmds/ethlambda-cmd.sh
index 35ad3de..922d0ae 100644
--- a/client-cmds/ethlambda-cmd.sh
+++ b/client-cmds/ethlambda-cmd.sh
@@ -7,6 +7,7 @@ binary_path="/Users/mega/lean_consensus/ethlambda/target/debug/ethlambda"
 # Command when running as binary
 node_binary="$binary_path \
       --custom-genesis-json-file \"$configDir/genesis.json\" \
+      --bootnodes-file \"$configDir/nodes.yaml\"
 "
 
 # Command when running as docker container

From 24c752a19bba2839e5f4f98cf762aba1f7b35876 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Mon, 5 Jan 2026 18:20:43 -0300
Subject: [PATCH 05/18] chore: change to validators-file

---
 client-cmds/ethlambda-cmd.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/client-cmds/ethlambda-cmd.sh b/client-cmds/ethlambda-cmd.sh
index 922d0ae..aee5031 100644
--- a/client-cmds/ethlambda-cmd.sh
+++ b/client-cmds/ethlambda-cmd.sh
@@ -7,7 +7,7 @@ binary_path="/Users/mega/lean_consensus/ethlambda/target/debug/ethlambda"
 # Command when running as binary
 node_binary="$binary_path \
       --custom-genesis-json-file \"$configDir/genesis.json\" \
-      --bootnodes-file \"$configDir/nodes.yaml\"
+      --validators-file \"$configDir/nodes.yaml\"
 "
 
 # Command when running as docker container

From 5727523539bba1d1a28ec1884532d299cb63f7f5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Tue, 6 Jan 2026 13:16:18 -0300
Subject: [PATCH 06/18] feat: add gossipsub-port flag

---
 client-cmds/ethlambda-cmd.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/client-cmds/ethlambda-cmd.sh b/client-cmds/ethlambda-cmd.sh
index aee5031..8903062 100644
--- a/client-cmds/ethlambda-cmd.sh
+++ b/client-cmds/ethlambda-cmd.sh
@@ -7,7 +7,8 @@ binary_path="/Users/mega/lean_consensus/ethlambda/target/debug/ethlambda"
 # Command when running as binary
 node_binary="$binary_path \
       --custom-genesis-json-file \"$configDir/genesis.json\" \
-      --validators-file \"$configDir/nodes.yaml\"
+      --validators-file \"$configDir/nodes.yaml\" \
+      --gossipsub-port $quicPort
 "
 
 # Command when running as docker container

From adf2db9ddd38168f5b917b1eb726fba294cb9558 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Tue, 6 Jan 2026 13:16:34 -0300
Subject: [PATCH 07/18] feat: generate new privkey for validator

---
 local-devnet/genesis/validator-config.yaml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/local-devnet/genesis/validator-config.yaml b/local-devnet/genesis/validator-config.yaml
index 536db17..5846565 100644
--- a/local-devnet/genesis/validator-config.yaml
+++ b/local-devnet/genesis/validator-config.yaml
@@ -63,9 +63,9 @@ validators:
   # TODO: generate a new keypair for this
   - name: "ethlambda_0"
     # node id a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2
-    # peer id 16Uiu2HAm7TYVs6qvDKnrovd9m4vvRikc4HPXm1WyLumKSe5fHxBv
-    privkey: "4fd22cf461fbeae4947a3fdaef8d533fc7fd1ef1ce4cd98e993210c18234df3f"
-    # verify /ip4/127.0.0.1/udp/9004/quic-v1/p2p/16Uiu2HAm7TYVs6qvDKnrovd9m4vvRikc4HPXm1WyLumKSe5fHxBv
+    # peer id 16Uiu2HAmPV5jU62WtmDkCEmfq1jzbBDkGbHNsDN78gJyvmv2TuC5
+    privkey: "299550529a79bc2dce003747c52fb0639465c893e00b0440ac66144d625e066a"
+    # verify /ip4/127.0.0.1/udp/9006/quic-v1/p2p/16Uiu2HAmPV5jU62WtmDkCEmfq1jzbBDkGbHNsDN78gJyvmv2TuC5
     enrFields:
       ip: "127.0.0.1"
       quic: 9006

From c4c1275489ced7d4caae934bda17d7ff5e6901f4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Tue, 6 Jan 2026 13:16:46 -0300
Subject: [PATCH 08/18] fix: apply blockblaz/lean-quickstart#78

---
 client-cmds/ream-cmd.sh | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/client-cmds/ream-cmd.sh b/client-cmds/ream-cmd.sh
index 2b01f61..0c5105d 100644
--- a/client-cmds/ream-cmd.sh
+++ b/client-cmds/ream-cmd.sh
@@ -1,11 +1,6 @@
 #!/bin/bash
 
 #-----------------------ream setup----------------------
-devnet_flag=""
-if [ -n "$devnet" ]; then
-        devnet_flag="--devnet $devnet"
-fi
-
 # Metrics enabled by default
 metrics_flag="--metrics"
 
@@ -14,7 +9,6 @@ node_binary="$scriptDir/../ream/target/release/ream --data-dir $dataDir/$item \
         lean_node \
         --network $configDir/config.yaml \
         --validator-registry-path $configDir/validators.yaml \
-        $devnet_flag \
         --bootnodes $configDir/nodes.yaml \
         --node-id $item --node-key $configDir/$privKeyPath \
         --socket-port $quicPort \
@@ -27,7 +21,6 @@ node_docker="ghcr.io/reamlabs/ream:latest --data-dir /data \
         lean_node \
         --network /config/config.yaml \
         --validator-registry-path /config/validators.yaml \
-        $devnet_flag \
         --bootnodes /config/nodes.yaml \
         --node-id $item --node-key /config/$privKeyPath \
         --socket-port $quicPort \

From 526dcb6658fcab539755dd402cc0dd470960520c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Tue, 6 Jan 2026 13:17:28 -0300
Subject: [PATCH 09/18] chore: remove stale TODO

---
 local-devnet/genesis/validator-config.yaml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/local-devnet/genesis/validator-config.yaml b/local-devnet/genesis/validator-config.yaml
index 5846565..0b7c875 100644
--- a/local-devnet/genesis/validator-config.yaml
+++ b/local-devnet/genesis/validator-config.yaml
@@ -60,7 +60,6 @@ validators:
     metricsPort: 8085
     count: 1
 
-  # TODO: generate a new keypair for this
   - name: "ethlambda_0"
     # node id a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2
     # peer id 16Uiu2HAmPV5jU62WtmDkCEmfq1jzbBDkGbHNsDN78gJyvmv2TuC5

From a1da7a69c5ae1bf9841fafceb6deb293ea8e9cfe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Wed, 7 Jan 2026 10:34:18 -0300
Subject: [PATCH 10/18] Revert "fix: apply blockblaz/lean-quickstart#78"

This reverts commit c4c1275489ced7d4caae934bda17d7ff5e6901f4.
---
 client-cmds/ream-cmd.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/client-cmds/ream-cmd.sh b/client-cmds/ream-cmd.sh
index 0c5105d..2b01f61 100644
--- a/client-cmds/ream-cmd.sh
+++ b/client-cmds/ream-cmd.sh
@@ -1,6 +1,11 @@
 #!/bin/bash
 
 #-----------------------ream setup----------------------
+devnet_flag=""
+if [ -n "$devnet" ]; then
+        devnet_flag="--devnet $devnet"
+fi
+
 # Metrics enabled by default
 metrics_flag="--metrics"
 
@@ -9,6 +14,7 @@ node_binary="$scriptDir/../ream/target/release/ream --data-dir $dataDir/$item \
         lean_node \
         --network $configDir/config.yaml \
         --validator-registry-path $configDir/validators.yaml \
+        $devnet_flag \
         --bootnodes $configDir/nodes.yaml \
         --node-id $item --node-key $configDir/$privKeyPath \
         --socket-port $quicPort \
@@ -21,6 +27,7 @@ node_docker="ghcr.io/reamlabs/ream:latest --data-dir /data \
         lean_node \
         --network /config/config.yaml \
         --validator-registry-path /config/validators.yaml \
+        $devnet_flag \
         --bootnodes /config/nodes.yaml \
         --node-id $item --node-key /config/$privKeyPath \
         --socket-port $quicPort \

From 4ddbb3e303ac510966d2ce238ca99d28245e1e62 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Thu, 8 Jan 2026 17:40:46 -0300
Subject: [PATCH 11/18] chore: update flag for network config dir

---
 client-cmds/ethlambda-cmd.sh | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/client-cmds/ethlambda-cmd.sh b/client-cmds/ethlambda-cmd.sh
index 8903062..3e3aa3b 100644
--- a/client-cmds/ethlambda-cmd.sh
+++ b/client-cmds/ethlambda-cmd.sh
@@ -6,8 +6,7 @@ binary_path="/Users/mega/lean_consensus/ethlambda/target/debug/ethlambda"
 
 # Command when running as binary
 node_binary="$binary_path \
-      --custom-genesis-json-file \"$configDir/genesis.json\" \
-      --validators-file \"$configDir/nodes.yaml\" \
+      --custom-network-config-dir $configDir \
       --gossipsub-port $quicPort
 "
 

From e25b368389a63818f349bdcc84a9ab9ad12e7bcc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Wed, 14 Jan 2026 20:53:29 -0300
Subject: [PATCH 12/18] feat: add new flags

---
 client-cmds/ethlambda-cmd.sh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/client-cmds/ethlambda-cmd.sh b/client-cmds/ethlambda-cmd.sh
index 3e3aa3b..4401d36 100644
--- a/client-cmds/ethlambda-cmd.sh
+++ b/client-cmds/ethlambda-cmd.sh
@@ -7,8 +7,10 @@ binary_path="/Users/mega/lean_consensus/ethlambda/target/debug/ethlambda"
 # Command when running as binary
 node_binary="$binary_path \
       --custom-network-config-dir $configDir \
-      --gossipsub-port $quicPort
-"
+      --gossipsub-port $quicPort \
+      --node-key $configDir/$item.key \
+      --metrics-address 0.0.0.0 \
+      --metrics-port $metricsPort"
 
 # Command when running as docker container
 # TODO: fill in docker command

From 6510e678865457fd0a4e21227f4dae68e7870e96 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Wed, 14 Jan 2026 20:54:50 -0300
Subject: [PATCH 13/18] chore: change ports to avoid collision with grandine

---
 local-devnet/genesis/validator-config.yaml | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/local-devnet/genesis/validator-config.yaml b/local-devnet/genesis/validator-config.yaml
index 80bd518..7f99d48 100644
--- a/local-devnet/genesis/validator-config.yaml
+++ b/local-devnet/genesis/validator-config.yaml
@@ -60,21 +60,21 @@ validators:
     metricsPort: 8085
     count: 1
 
-  - name: "ethlambda_0"
-    # node id a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2
-    # peer id 16Uiu2HAmPV5jU62WtmDkCEmfq1jzbBDkGbHNsDN78gJyvmv2TuC5
-    privkey: "299550529a79bc2dce003747c52fb0639465c893e00b0440ac66144d625e066a"
-    # verify /ip4/127.0.0.1/udp/9006/quic-v1/p2p/16Uiu2HAmPV5jU62WtmDkCEmfq1jzbBDkGbHNsDN78gJyvmv2TuC5
+  - name: "grandine_0"
+    privkey: "64a7f5ab53907966374ca23af36392910af682eec82c12e3abbb6c2ccdf39a72"
     enrFields:
       ip: "127.0.0.1"
       quic: 9006
     metricsPort: 8086
     count: 1
 
-  - name: "grandine_0"
-    privkey: "64a7f5ab53907966374ca23af36392910af682eec82c12e3abbb6c2ccdf39a72"
+  - name: "ethlambda_0"
+    # node id a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2
+    # peer id 16Uiu2HAmPV5jU62WtmDkCEmfq1jzbBDkGbHNsDN78gJyvmv2TuC5
+    privkey: "299550529a79bc2dce003747c52fb0639465c893e00b0440ac66144d625e066a"
+    # verify /ip4/127.0.0.1/udp/9007/quic-v1/p2p/16Uiu2HAmPV5jU62WtmDkCEmfq1jzbBDkGbHNsDN78gJyvmv2TuC5
     enrFields:
       ip: "127.0.0.1"
-      quic: 9006
-    metricsPort: 8086
-    count: 1
\ No newline at end of file
+      quic: 9007
+    metricsPort: 8087
+    count: 1

From a516fe41e57df44a56156c1072a392659cd29afa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Fri, 16 Jan 2026 17:20:02 -0300
Subject: [PATCH 14/18] feat: add docker command

---
 client-cmds/ethlambda-cmd.sh | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/client-cmds/ethlambda-cmd.sh b/client-cmds/ethlambda-cmd.sh
index 4401d36..e0c80d6 100644
--- a/client-cmds/ethlambda-cmd.sh
+++ b/client-cmds/ethlambda-cmd.sh
@@ -8,12 +8,18 @@ binary_path="/Users/mega/lean_consensus/ethlambda/target/debug/ethlambda"
 node_binary="$binary_path \
       --custom-network-config-dir $configDir \
       --gossipsub-port $quicPort \
+      --node-id $item \
       --node-key $configDir/$item.key \
       --metrics-address 0.0.0.0 \
       --metrics-port $metricsPort"
 
 # Command when running as docker container
-# TODO: fill in docker command
-node_docker="--------------"
+node_docker="ethlambda:latest \
+      --custom-network-config-dir /config \
+      --gossipsub-port $quicPort \
+      --node-id $item \
+      --node-key /config/$item.key \
+      --metrics-address 0.0.0.0 \
+      --metrics-port $metricsPort"
 
-node_setup="binary"
+node_setup="docker"

From 04b8b62222ba78c1c40983a908fbe356dcdcb6a8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Mon, 19 Jan 2026 11:49:40 -0300
Subject: [PATCH 15/18] chore: update image name and binary path

---
 client-cmds/ethlambda-cmd.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/client-cmds/ethlambda-cmd.sh b/client-cmds/ethlambda-cmd.sh
index e0c80d6..6ad8f83 100644
--- a/client-cmds/ethlambda-cmd.sh
+++ b/client-cmds/ethlambda-cmd.sh
@@ -2,7 +2,7 @@
 
 #-----------------------ethlambda setup----------------------
 
-binary_path="/Users/mega/lean_consensus/ethlambda/target/debug/ethlambda"
+binary_path="$scriptDir/../ethlambda/target/release/ethlambda"
 
 # Command when running as binary
 node_binary="$binary_path \
@@ -14,7 +14,7 @@ node_binary="$binary_path \
       --metrics-port $metricsPort"
 
 # Command when running as docker container
-node_docker="ethlambda:latest \
+node_docker="ghcr.io/lambdaclass/ethlambda:latest \
       --custom-network-config-dir /config \
       --gossipsub-port $quicPort \
       --node-id $item \

From 8169cbe40e4a13e68c243a70446abf0ef1c8da07 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Mon, 19 Jan 2026 16:36:47 -0300
Subject: [PATCH 16/18] feat: add ansible changes

---
 ansible-devnet/genesis/validator-config.yaml |   8 ++
 ansible/playbooks/deploy-single-node.yml     |  12 ++-
 ansible/roles/ethlambda/defaults/main.yml    |   7 ++
 ansible/roles/ethlambda/tasks/main.yml       | 100 +++++++++++++++++++
 generate-ansible-inventory.sh                |   4 +-
 run-ansible.sh                               |   2 +-
 6 files changed, 129 insertions(+), 4 deletions(-)
 create mode 100644 ansible/roles/ethlambda/defaults/main.yml
 create mode 100644 ansible/roles/ethlambda/tasks/main.yml

diff --git a/ansible-devnet/genesis/validator-config.yaml b/ansible-devnet/genesis/validator-config.yaml
index d6c9dd2..4d7405c 100644
--- a/ansible-devnet/genesis/validator-config.yaml
+++ b/ansible-devnet/genesis/validator-config.yaml
@@ -66,4 +66,12 @@ validators:
       ip: "46.62.163.74"
       quic: 9001
     metricsPort: 8081
+    count: 1
+
+  - name: "ethlambda_0"
+    privkey: "299550529a79bc2dce003747c52fb0639465c893e00b0440ac66144d625e066a"
+    enrFields:
+      ip: "TBD"
+      quic: 9001
+    metricsPort: 8081
     count: 1
\ No newline at end of file
diff --git a/ansible/playbooks/deploy-single-node.yml b/ansible/playbooks/deploy-single-node.yml
index 39a7285..116a3e5 100644
--- a/ansible/playbooks/deploy-single-node.yml
+++ b/ansible/playbooks/deploy-single-node.yml
@@ -76,7 +76,15 @@
     - grandine
     - deploy
 
+- name: Deploy Ethlambda node
+  include_role:
+    name: ethlambda
+  when: client_type == "ethlambda"
+  tags:
+    - ethlambda
+    - deploy
+
 - name: Fail if unknown client type
   fail:
-    msg: "Unknown client type '{{ client_type }}' for node '{{ node_name }}'. Expected: zeam, ream, qlean, lantern, lighthouse or grandine"
-  when: client_type not in ["zeam", "ream", "qlean", "lantern", "lighthouse", "grandine"]
+    msg: "Unknown client type '{{ client_type }}' for node '{{ node_name }}'. Expected: zeam, ream, qlean, lantern, lighthouse, grandine or ethlambda"
+  when: client_type not in ["zeam", "ream", "qlean", "lantern", "lighthouse", "grandine", "ethlambda"]
diff --git a/ansible/roles/ethlambda/defaults/main.yml b/ansible/roles/ethlambda/defaults/main.yml
new file mode 100644
index 0000000..fc8589d
--- /dev/null
+++ b/ansible/roles/ethlambda/defaults/main.yml
@@ -0,0 +1,7 @@
+---
+# Default variables for ethlambda role
+# Note: These are fallback defaults. Actual values are extracted from client-cmds/ethlambda-cmd.sh
+# in the tasks/main.yml file. These defaults are used if extraction fails.
+
+ethlambda_docker_image: "ghcr.io/lambdaclass/ethlambda:latest"
+deployment_mode: docker  # docker or binary
diff --git a/ansible/roles/ethlambda/tasks/main.yml b/ansible/roles/ethlambda/tasks/main.yml
new file mode 100644
index 0000000..9b5b88c
--- /dev/null
+++ b/ansible/roles/ethlambda/tasks/main.yml
@@ -0,0 +1,100 @@
+---
+# Ethlambda role: Deploy and manage Ethlambda nodes
+# Converts client-cmds/ethlambda-cmd.sh logic to Ansible tasks
+
+- name: Extract docker image from client-cmd.sh
+  shell: |
+    # Extract the first word (docker image) from node_docker line
+    # playbook_dir points to ansible/playbooks, go up two levels to reach project root
+    project_root="$(cd '{{ playbook_dir }}/../..' && pwd)"
+    grep -E '^node_docker=' "$project_root/client-cmds/ethlambda-cmd.sh" | head -1 | sed -E 's/.*node_docker="([^ "]+).*/\1/'
+  register: ethlambda_docker_image_raw
+  changed_when: false
+  delegate_to: localhost
+  run_once: true
+
+- name: Extract deployment mode from client-cmd.sh
+  shell: |
+    # Extract the value from node_setup line
+    # playbook_dir points to ansible/playbooks, go up two levels to reach project root
+    project_root="$(cd '{{ playbook_dir }}/../..' && pwd)"
+    grep -E '^node_setup=' "$project_root/client-cmds/ethlambda-cmd.sh" | head -1 | sed -E 's/.*node_setup="([^"]+)".*/\1/'
+  register: ethlambda_deployment_mode_raw
+  changed_when: false
+  delegate_to: localhost
+  run_once: true
+
+- name: Set docker image and deployment mode from client-cmd.sh
+  set_fact:
+    ethlambda_docker_image: "{{ ethlambda_docker_image_raw.stdout | trim | default('ghcr.io/lambdaclass/ethlambda:latest') }}"
+    deployment_mode: "{{ ethlambda_deployment_mode_raw.stdout | trim | default('docker') }}"
+
+- name: Extract node configuration from validator-config.yaml
+  shell: |
+    yq eval ".validators[] | select(.name == \"{{ node_name }}\") | .{{ item }}" "{{ genesis_dir }}/validator-config.yaml"
+  register: ethlambda_node_config
+  changed_when: false
+  loop:
+    - enrFields.quic
+    - privkey
+  when: node_name is defined
+
+- name: Set node ports
+  set_fact:
+    ethlambda_quic_port: "{{ ethlambda_node_config.results[0].stdout }}"
+    ethlambda_metrics_port: "{{ ethlambda_node_config.results[1].stdout | default('8081') }}"
+  when: ethlambda_node_config is defined
+
+- name: Ensure node key file exists
+  stat:
+    path: "{{ genesis_dir }}/{{ node_name }}.key"
+  register: node_key_stat
+
+- name: Debug node key file check
+  debug:
+    msg: "Checking for key file at {{ genesis_dir }}/{{ node_name }}.key - exists: {{ node_key_stat.stat.exists | default('undefined') }}"
+
+- name: Fail if node key file is missing
+  fail:
+    msg: "Node key file {{ node_name }}.key not found in {{ genesis_dir }}"
+  when: not (node_key_stat.stat.exists | default(false))
+
+- name: Clean node data directory
+  file:
+    path: "{{ data_dir }}/{{ node_name }}"
+    state: absent
+  when: clean_data | default(false) | bool
+
+- name: Create node data directory
+  file:
+    path: "{{ data_dir }}/{{ node_name }}"
+    state: directory
+    mode: '0755'
+
+- name: Deploy Ethlambda node using Docker
+  block:
+    - name: Stop existing Ethlambda container (if any)
+      command: docker rm -f {{ node_name }}
+      register: ethlambda_stop
+      failed_when: false
+      changed_when: ethlambda_stop.rc == 0
+
+    - name: Start Ethlambda container
+      command: >-
+        docker run -d
+        --pull=always
+        --name {{ node_name }}
+        --restart unless-stopped
+        --network host
+        -v {{ genesis_dir }}:/config:ro
+        -v {{ data_dir }}/{{ node_name }}:/data
+        {{ ethlambda_docker_image }}
+        --custom-network-config-dir /config
+        --gossipsub-port {{ ethlambda_quic_port }}
+        --node-id {{ node_name }}
+        --node-key /config/{{ node_name }}.key
+        --metrics-address 0.0.0.0
+        --metrics-port {{ ethlambda_metrics_port }}
+      register: ethlambda_container
+      changed_when: ethlambda_container.rc == 0
+  when: deployment_mode == 'docker'
diff --git a/generate-ansible-inventory.sh b/generate-ansible-inventory.sh
index c8bd385..e36044e 100755
--- a/generate-ansible-inventory.sh
+++ b/generate-ansible-inventory.sh
@@ -58,6 +58,8 @@ all:
       hosts: {}
     grandine_nodes:
       hosts: {}
+    ethlambda_nodes:
+      hosts: {}
 EOF
 
 # Extract node information from validator-config.yaml
@@ -65,7 +67,7 @@ nodes=($(yq eval '.validators[].name' "$VALIDATOR_CONFIG"))
 
 # Process each node and generate inventory entries
 for node_name in "${nodes[@]}"; do
-    # Extract client type (zeam, ream, qlean, lantern, lighthouse, grandine)
+    # Extract client type (zeam, ream, qlean, lantern, lighthouse, grandine, ethlambda)
     IFS='_' read -r -a elements <<< "$node_name"
     client_type="${elements[0]}"
     group_name="${client_type}_nodes"
diff --git a/run-ansible.sh b/run-ansible.sh
index a613417..5f4eabd 100755
--- a/run-ansible.sh
+++ b/run-ansible.sh
@@ -58,7 +58,7 @@ fi
 # Update inventory with SSH key file and user if provided
 if command -v yq &> /dev/null; then
   # Get all remote host groups (zeam_nodes, ream_nodes, qlean_nodes, lantern_nodes, lighthouse_nodes)
-  for group in zeam_nodes ream_nodes qlean_nodes lantern_nodes lighthouse_nodes grandine_nodes; do
+  for group in zeam_nodes ream_nodes qlean_nodes lantern_nodes lighthouse_nodes grandine_nodes ethlambda_nodes; do
     # Get all hosts in this group
     hosts=$(yq eval ".all.children.$group.hosts | keys | .[]" "$INVENTORY_FILE" 2>/dev/null || echo "")
     for host in $hosts; do

From 680867a26751b63f1507501f0af366b5a0906715 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Mon, 19 Jan 2026 17:00:59 -0300
Subject: [PATCH 17/18] fix: use metricsPort instead of privkey

---
 ansible/roles/ethlambda/tasks/main.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/ansible/roles/ethlambda/tasks/main.yml b/ansible/roles/ethlambda/tasks/main.yml
index 9b5b88c..3c063fa 100644
--- a/ansible/roles/ethlambda/tasks/main.yml
+++ b/ansible/roles/ethlambda/tasks/main.yml
@@ -36,13 +36,13 @@
   changed_when: false
   loop:
     - enrFields.quic
-    - privkey
+    - metricsPort
   when: node_name is defined
 
 - name: Set node ports
   set_fact:
     ethlambda_quic_port: "{{ ethlambda_node_config.results[0].stdout }}"
-    ethlambda_metrics_port: "{{ ethlambda_node_config.results[1].stdout | default('8081') }}"
+    ethlambda_metrics_port: "{{ ethlambda_node_config.results[1].stdout }}"
   when: ethlambda_node_config is defined
 
 - name: Ensure node key file exists
@@ -69,7 +69,7 @@
   file:
     path: "{{ data_dir }}/{{ node_name }}"
     state: directory
-    mode: '0755'
+    mode: "0755"
 
 - name: Deploy Ethlambda node using Docker
   block:

From fb7af24ac820a5c28944258004ac220582f4cbd9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Gr=C3=BCner?=
 <47506558+MegaRedHand@users.noreply.github.com>
Date: Tue, 20 Jan 2026 18:18:27 -0300
Subject: [PATCH 18/18] chore: change docker image tag to "devnet1"

---
 ansible/roles/ethlambda/defaults/main.yml | 2 +-
 ansible/roles/ethlambda/tasks/main.yml    | 2 +-
 client-cmds/ethlambda-cmd.sh              | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/ansible/roles/ethlambda/defaults/main.yml b/ansible/roles/ethlambda/defaults/main.yml
index fc8589d..0305c15 100644
--- a/ansible/roles/ethlambda/defaults/main.yml
+++ b/ansible/roles/ethlambda/defaults/main.yml
@@ -3,5 +3,5 @@
 # Note: These are fallback defaults. Actual values are extracted from client-cmds/ethlambda-cmd.sh
 # in the tasks/main.yml file. These defaults are used if extraction fails.
 
-ethlambda_docker_image: "ghcr.io/lambdaclass/ethlambda:latest"
+ethlambda_docker_image: "ghcr.io/lambdaclass/ethlambda:devnet1"
 deployment_mode: docker  # docker or binary
diff --git a/ansible/roles/ethlambda/tasks/main.yml b/ansible/roles/ethlambda/tasks/main.yml
index 3c063fa..cae6b0b 100644
--- a/ansible/roles/ethlambda/tasks/main.yml
+++ b/ansible/roles/ethlambda/tasks/main.yml
@@ -26,7 +26,7 @@
 
 - name: Set docker image and deployment mode from client-cmd.sh
   set_fact:
-    ethlambda_docker_image: "{{ ethlambda_docker_image_raw.stdout | trim | default('ghcr.io/lambdaclass/ethlambda:latest') }}"
+    ethlambda_docker_image: "{{ ethlambda_docker_image_raw.stdout | trim | default('ghcr.io/lambdaclass/ethlambda:devnet1') }}"
     deployment_mode: "{{ ethlambda_deployment_mode_raw.stdout | trim | default('docker') }}"
 
 - name: Extract node configuration from validator-config.yaml
diff --git a/client-cmds/ethlambda-cmd.sh b/client-cmds/ethlambda-cmd.sh
index 6ad8f83..a639bf5 100644
--- a/client-cmds/ethlambda-cmd.sh
+++ b/client-cmds/ethlambda-cmd.sh
@@ -14,7 +14,7 @@ node_binary="$binary_path \
       --metrics-port $metricsPort"
 
 # Command when running as docker container
-node_docker="ghcr.io/lambdaclass/ethlambda:latest \
+node_docker="ghcr.io/lambdaclass/ethlambda:devnet1 \
       --custom-network-config-dir /config \
       --gossipsub-port $quicPort \
       --node-id $item \