feat(pd): custom voting periods testnet generate

During testing of upgrades, it's been handy to reduce the default,
static value of "24h" for voting on a given proposal, so that a proposal
can be made, voted on, and passed, all within e.g. 1h. This setting
greatly accelerates testing on devnets.

Also includes customization var in deploy scripts for `epoch_duration`,
which we're not currently overriding, but now we can if we want to.

Ideally we'd set these customizations by just overriding the
`pd testnet generate` command, but given that the cmd requires
a storage dir arg that's non-standard, it's more straightforward
to stick with the clunky vars-based approach for now.

crates/bin/pd/src/main.rs

@@ -183,6 +183,10 @@ enum TestnetCommand {
         /// Testnet name [default: latest testnet].
         #[clap(long)]
         chain_id: Option<String>,
+        /// The duration, in number of blocks, that a governance proposal
+        /// can be voted on.
+        #[clap(long)]
+        proposal_voting_blocks: Option<u64>,
         /// Base hostname for a validator's p2p service. If multiple validators
         /// exist in the genesis, e.g. via `--validators-input-file`, then
         /// numeric suffixes are automatically added, e.g. "-0", "-1", etc.
@@ -600,6 +604,7 @@ async fn main() -> anyhow::Result<()> {
                     chain_id,
                     preserve_chain_id,
                     external_addresses,
+                    proposal_voting_blocks,
                 },
             testnet_dir,
         } => {
@@ -655,6 +660,7 @@ async fn main() -> anyhow::Result<()> {
                 active_validator_limit,
                 epoch_duration,
                 unbonding_epochs,
+                proposal_voting_blocks,
             )?;
             tracing::info!(
                 n_validators = t.validators.len(),

crates/bin/pd/src/testnet/generate.rs

@@ -5,6 +5,7 @@ use crate::testnet::config::{get_testnet_dir, TestnetTendermintConfig, Validator
 use anyhow::{Context, Result};
 use penumbra_app::{genesis, params::AppParameters};
 use penumbra_chain::{genesis::Content as ChainContent, params::ChainParameters};
+use penumbra_governance::genesis::Content as GovernanceContent;
 use penumbra_keys::{keys::SpendKey, Address};
 use penumbra_shielded_pool::genesis::{
     self as shielded_pool_genesis, Allocation, Content as ShieldedPoolContent,
@@ -65,6 +66,7 @@ impl TestnetConfig {
         active_validator_limit: Option<u64>,
         epoch_duration: Option<u64>,
         unbonding_epochs: Option<u64>,
+        proposal_voting_blocks: Option<u64>,
     ) -> anyhow::Result<TestnetConfig> {
         let external_addresses = external_addresses.unwrap_or_default();
 
@@ -93,6 +95,7 @@ impl TestnetConfig {
             active_validator_limit,
             epoch_duration,
             unbonding_epochs,
+            proposal_voting_blocks,
         )?;
         let genesis = Self::make_genesis(app_state)?;
 
@@ -180,20 +183,33 @@ impl TestnetConfig {
         active_validator_limit: Option<u64>,
         epoch_duration: Option<u64>,
         unbonding_epochs: Option<u64>,
+        proposal_voting_blocks: Option<u64>,
     ) -> anyhow::Result<genesis::Content> {
+        let default_gov_params = penumbra_governance::params::GovernanceParameters::default();
+
+        let gov_params = penumbra_governance::params::GovernanceParameters {
+            proposal_voting_blocks: proposal_voting_blocks
+                .unwrap_or(default_gov_params.proposal_voting_blocks),
+            ..default_gov_params
+        };
+
         // Look up default app params, so we can fill in defaults.
-        let default_params = AppParameters::default();
+        let default_app_params = AppParameters::default();
+
         let app_state = genesis::Content {
             stake_content: StakeContent {
                 validators: validators.into_iter().map(Into::into).collect(),
                 stake_params: StakeParameters {
                     active_validator_limit: active_validator_limit
-                        .unwrap_or(default_params.stake_params.active_validator_limit),
+                        .unwrap_or(default_app_params.stake_params.active_validator_limit),
                     unbonding_epochs: unbonding_epochs
-                        .unwrap_or(default_params.stake_params.unbonding_epochs),
+                        .unwrap_or(default_app_params.stake_params.unbonding_epochs),
                     ..Default::default()
                 },
             },
+            governance_content: GovernanceContent {
+                governance_params: gov_params,
+            },
             shielded_pool_content: ShieldedPoolContent {
                 allocations: allocations.clone(),
             },
@@ -202,7 +218,7 @@ impl TestnetConfig {
                     chain_id: chain_id.to_string(),
                     // Fall back to chain param defaults
                     epoch_duration: epoch_duration
-                        .unwrap_or(default_params.chain_params.epoch_duration),
+                        .unwrap_or(default_app_params.chain_params.epoch_duration),
                 },
             },
             ..Default::default()
@@ -332,6 +348,7 @@ pub fn testnet_generate(
     external_addresses: Vec<TendermintAddress>,
     validators_input_file: Option<PathBuf>,
     allocations_input_file: Option<PathBuf>,
+    proposal_voting_blocks: Option<u64>,
 ) -> anyhow::Result<()> {
     tracing::info!(?chain_id, "Generating network config");
     let t = TestnetConfig::generate(
@@ -345,6 +362,7 @@ pub fn testnet_generate(
         active_validator_limit,
         epoch_duration,
         unbonding_epochs,
+        proposal_voting_blocks,
     )?;
     tracing::info!(
         n_validators = t.validators.len(),

deployments/charts/penumbra-network/templates/job-generate.yaml

@@ -74,6 +74,12 @@ spec:
                 {{- if .Values.network.preserve_chain_id }}
                 --preserve-chain-id \
                 {{- end }}
+                {{- if .Values.network.epoch_duration }}
+                --epoch-duration {{ .Values.network.epoch_duration }} \
+                {{- end }}
+                {{- if .Values.network.proposal_voting_blocks }}
+                --proposal-voting-blocks {{ .Values.network.proposal_voting_blocks }} \
+                {{- end }}
                 --validators-input-file /penumbra/validators.json \
                 --external-addresses {{ .Values.network.external_addresses }}
 

deployments/charts/penumbra-network/values.yaml

@@ -25,6 +25,9 @@ network:
   # It'd be grand to have a DNS hostname in here, e.g. `veil.petrichor.guru:31888`.
   # external_addresses: veil.petrichor.guru:31888
   external_addresses: ""
+  # Customization of the voting period for governance proposals.
+  # Dial this down if you want faster voting for testing.
+  proposal_voting_blocks:
 
   # How many validators are present at genesis. This number must
   # match the count in the JSON file used to define the validators.