Add development chain-spec file for minimal/parachain templates for Omni Node compatibility (#6529)

# Description

This PR adds development chain specs for the minimal and parachain
templates.
[#6334](https://github.com/paritytech/polkadot-sdk/issues/6334)


## Integration

This PR adds development chain specs for the minimal and para chain
template runtimes, ensuring synchronization with runtime code. It
updates zombienet-omni-node.toml, zombinet.toml files to include valid
chain spec paths, simplifying configuration for zombienet in the
parachain and minimal template.

## Review Notes

1. Overview of Changes:
- Added development chain specs for use in the minimal and parachain
template.
- Updated zombienet-omni-node.toml and zombinet.toml files in the
minimal and parachain templates to include paths to the new dev chain
specs.

2. Integration Guidance:
**NB: Follow the templates' READMEs from the polkadot-SDK master branch.
Please build the binaries and runtimes based on the polkadot-SDK master
branch.**
- Ensure you have set up your runtimes `parachain-template-runtime` and
`minimal-template-runtime`
- Ensure you have installed the nodes required ie
`parachain-template-node` and `minimal-template-node`
- Set up [Zombinet](https://paritytech.github.io/zombienet/intro.html)
- For running the parachains, you will need to install the polkadot
`cargo install --path polkadot` remember from the polkadot-SDK master
branch.
- Inside the template folders minimal or parachain, run the command to
start with `Zombienet with Omni Node`, `Zombienet with
minimal-template-node` or `Zombienet with parachain-template-node`

*Include your leftover TODOs, if any, here.*
* [ ] Test the syncing of chain specs with runtime's code.

---------

Signed-off-by: EleisonC <ckalule7@gmail.com>
Co-authored-by: Iulian Barbu <14218860+iulianbarbu@users.noreply.github.com>
Co-authored-by: Alexander Samusev <41779041+alvicsam@users.noreply.github.com>

.github/workflows/misc-sync-templates.yml

@@ -31,7 +31,66 @@ on:
         default: ""
 
 jobs:
+  prepare-chain-spec-artifacts:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - template: minimal
+            package_name: 'minimal-template-runtime'
+            runtime_path: './templates/minimal/runtime'
+            runtime_wasm_path: minimal-template-runtime/minimal_template_runtime.compact.compressed.wasm
+            relay_chain: 'dev'
+          - template: parachain
+            package_name: 'parachain-template-runtime'
+            runtime_path: './templates/parachain/runtime'
+            runtime_wasm_path: parachain-template-runtime/parachain_template_runtime.compact.compressed.wasm
+            relay_chain: 'rococo-local'
+    steps:
+        - uses: actions/checkout@v4
+          with:
+            ref: "${{ github.event.inputs.stable_release_branch }}"
+
+        - name: Setup build environment
+          run: |
+            sudo apt-get update
+            sudo apt-get install -y protobuf-compiler
+            cargo install --git https://github.com/chevdor/srtool-cli --locked
+            cargo install --path substrate/bin/utils/chain-spec-builder --locked
+            srtool pull
+            
+        - name: Build runtime and generate chain spec
+          run: |
+            # Prepare directories
+            sudo mkdir -p ${{ matrix.template.runtime_path }}/target
+            sudo chmod -R 777 ${{ matrix.template.runtime_path }}/target
+            
+            # Build runtime
+            srtool build --package ${{ matrix.template.package_name }} --runtime-dir ${{ matrix.template.runtime_path }} --root
+            
+            # Generate chain spec
+            # Note that para-id is set to 1000 for both minimal/parachain templates. 
+            # `parachain-runtime` is hardcoded to use this parachain id. 
+            # `minimal` template isn't using it, but when started with Omni Node, this para id is required (any number can do it, so setting it to 1000 for convenience).
+            chain-spec-builder -c dev_chain_spec.json create \
+              --relay-chain "${{ matrix.template.relay_chain }}" \
+              --para-id 1000 \
+              --runtime "${{ matrix.template.runtime_path }}/target/srtool/release/wbuild/${{ matrix.template.runtime_wasm_path }}" \
+              named-preset development
+
+        - name: Prepare upload directory
+          run: |
+            mkdir -p artifacts-${{ matrix.template }}
+            cp dev_chain_spec.json artifacts-${{ matrix.template }}/dev_chain_spec.json
+
+        - name: Upload template directory
+          uses: actions/upload-artifact@v4
+          with:
+            name: artifacts-${{ matrix.template }}
+            path: artifacts-${{ matrix.template }}/dev_chain_spec.json
+
   sync-templates:
+    needs: prepare-chain-spec-artifacts
     runs-on: ubuntu-latest
     environment: master
     strategy:
@@ -52,6 +111,12 @@ jobs:
         with:
           path: polkadot-sdk
           ref: "${{ github.event.inputs.stable_release_branch }}"
+      - name: Download template artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: artifacts-${{ matrix.template }}
+          path: templates/${{ matrix.template }}/
+        if: matrix.template != 'solochain'
       - name: Generate a token for the template repository
         id: app_token
         uses: actions/create-github-app-token@v1.9.3

templates/minimal/README.md

@@ -42,6 +42,7 @@ such as a [Balances pallet](https://paritytech.github.io/polkadot-sdk/master/pal
 
 - 👤 The template has no consensus configured - it is best for experimenting with a single node network.
 
+
 ## Template Structure
 
 A Polkadot SDK based project such as this one consists of:
@@ -61,7 +62,7 @@ compiled unless building the entire workspace).
 - 🛠️ Depending on your operating system and Rust version, there might be additional
 packages required to compile this template - please take note of the Rust compiler output.
 
-Fetch minimal template code:
+Fetch minimal template code.
 
 ```sh
 git clone https://github.com/paritytech/polkadot-sdk-minimal-template.git minimal-template
@@ -147,11 +148,13 @@ docker run --rm polkadot-sdk-minimal-template
 We can install `zombienet` as described [here](https://paritytech.github.io/zombienet/install.html#installation),
 and `zombienet-omni-node.toml` contains the network specification we want to start.
 
+
 #### Update `zombienet-omni-node.toml` with a valid chain spec path
 
-Before starting the network with zombienet we must update the network specification
-with a valid chain spec path. If we need to generate one, we can look up at the previous
-section for chain spec creation [here](#use-chain-spec-builder-to-generate-the-chain_specjson-file).
+To simplify the process of starting the minimal template with ZombieNet and Omni Node, we've included a
+pre-configured development chain spec (dev_chain_spec.json) in the minimal template. The zombienet-omni-node.toml
+file in this template points to it, but you can update it to a new path for the chain spec generated on your machine.
+To generate a chain spec refer to [staging-chain-spec-builder](https://crates.io/crates/staging-chain-spec-builder)
 
 Then make the changes in the network specification like so:
 

templates/minimal/zombienet-omni-node.toml

 [relaychain]
 default_command = "polkadot-omni-node"
 chain = "dev"
-chain_spec_path = "<path/to/chain_spec.json>"
-default_args = ["--dev"]
+chain_spec_path = "./dev_chain_spec.json"
+default_args = ["--dev-block-time 3000"]
 
 [[relaychain.nodes]]
 name = "alice"

templates/parachain/README.docify.md

@@ -144,10 +144,17 @@ export PATH="$PATH:<path/to/binaries>"
 
 #### Update `zombienet-omni-node.toml` with a valid chain spec path
 
+To simplify the process of using the parachain-template with zombienet and Omni Node, we've added a pre-configured
+development chain spec (dev_chain_spec.json) to the parachain template. The zombienet-omni-node.toml file of this
+template points to it, but you can update it to an updated chain spec generated on your machine. To generate a
+chain spec refer to [staging-chain-spec-builder](https://crates.io/crates/staging-chain-spec-builder)
+
+Then make the changes in the network specification like so:
+
 ```toml
 # ...
 [[parachains]]
-id = {{PARACHAIN_ID}}
+id = "<PARACHAIN_ID>"
 chain_spec_path = "<TO BE UPDATED WITH A VALID PATH>"
 # ...
 ```

templates/parachain/README.md

@@ -146,10 +146,17 @@ export PATH="$PATH:<path/to/binaries>"
 
 #### Update `zombienet-omni-node.toml` with a valid chain spec path
 
+To simplify the process of using the parachain-template with zombienet and Omni Node, we've added a pre-configured
+development chain spec (dev_chain_spec.json) to the parachain template. The zombienet-omni-node.toml file of this
+template points to it, but you can update it to an updated chain spec generated on your machine. To generate a
+chain spec refer to [staging-chain-spec-builder](https://crates.io/crates/staging-chain-spec-builder)
+
+Then make the changes in the network specification like so:
+
 ```toml
 # ...
 [[parachains]]
-id = {{PARACHAIN_ID}}
+id = "<PARACHAIN_ID>"
 chain_spec_path = "<TO BE UPDATED WITH A VALID PATH>"
 # ...
 ```

templates/parachain/zombienet-omni-node.toml

@@ -14,7 +14,7 @@ ws_port = 9955
 
 [[parachains]]
 id = 1000
-chain_spec_path = "<path/to/chain_spec.json>"
+chain_spec_path = "./dev_chain_spec.json"
 
 [parachains.collator]
 name = "charlie"