From 2814d41842bd48b0015c5ae000a61113b7d806d7 Mon Sep 17 00:00:00 2001 From: Alex Auvolat Date: Wed, 16 Mar 2022 14:43:04 +0100 Subject: Allow `garage layout assign` to assign to several nodes at once --- src/garage/cli/layout.rs | 97 ++++++++++++++++++++++++++--------------------- src/garage/cli/structs.rs | 5 ++- 2 files changed, 56 insertions(+), 46 deletions(-) diff --git a/src/garage/cli/layout.rs b/src/garage/cli/layout.rs index e0aba1d1..e76f7737 100644 --- a/src/garage/cli/layout.rs +++ b/src/garage/cli/layout.rs @@ -43,7 +43,11 @@ pub async fn cmd_assign_role( resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))), }; - let added_node = find_matching_node(status.iter().map(|adv| adv.id), &args.node_id)?; + let added_nodes = args + .node_ids + .iter() + .map(|node_id| find_matching_node(status.iter().map(|adv| adv.id), node_id)) + .collect::, _>>()?; let mut layout = fetch_layout(rpc_cli, rpc_host).await?; @@ -75,46 +79,51 @@ pub async fn cmd_assign_role( return Err(Error::Message("Invalid capacity value: 0".into())); } - let new_entry = match roles.get(&added_node) { - Some(NodeRoleV(Some(old))) => { - let capacity = match args.capacity { - Some(c) => Some(c), - None if args.gateway => None, - None => old.capacity, - }; - let tags = if args.tags.is_empty() { - old.tags.clone() - } else { - args.tags - }; - NodeRole { - zone: args.zone.unwrap_or_else(|| old.zone.to_string()), - capacity, - tags, + for added_node in added_nodes { + let new_entry = match roles.get(&added_node) { + Some(NodeRoleV(Some(old))) => { + let capacity = match args.capacity { + Some(c) => Some(c), + None if args.gateway => None, + None => old.capacity, + }; + let tags = if args.tags.is_empty() { + old.tags.clone() + } else { + args.tags.clone() + }; + NodeRole { + zone: args.zone.clone().unwrap_or_else(|| old.zone.to_string()), + capacity, + tags, + } } - } - _ => { - let capacity = match args.capacity { - Some(c) => Some(c), - None if args.gateway => None, - None => return Err(Error::Message( - "Please specify a capacity with the -c flag, or set node explicitly as gateway with -g".into())), - }; - NodeRole { - zone: args.zone.ok_or("Please specifiy a zone with the -z flag")?, - capacity, - tags: args.tags, + _ => { + let capacity = match args.capacity { + Some(c) => Some(c), + None if args.gateway => None, + None => return Err(Error::Message( + "Please specify a capacity with the -c flag, or set node explicitly as gateway with -g".into())), + }; + NodeRole { + zone: args + .zone + .clone() + .ok_or("Please specifiy a zone with the -z flag")?, + capacity, + tags: args.tags.clone(), + } } - } - }; + }; - layout - .staging - .merge(&roles.update_mutator(added_node, NodeRoleV(Some(new_entry)))); + layout + .staging + .merge(&roles.update_mutator(added_node, NodeRoleV(Some(new_entry)))); + } send_layout(rpc_cli, rpc_host, layout).await?; - println!("Role change is staged but not yet commited."); + println!("Role changes are staged but not yet commited."); println!("Use `garage layout show` to view staged role changes,"); println!("and `garage layout apply` to enact staged changes."); Ok(()) @@ -196,15 +205,6 @@ pub async fn cmd_apply_layout( ) -> Result<(), Error> { let mut layout = fetch_layout(rpc_cli, rpc_host).await?; - layout.roles.merge(&layout.staging); - - if !layout.calculate_partition_assignation() { - return Err(Error::Message("Could not calculate new assignation of partitions to nodes. This can happen if there are less nodes than the desired number of copies of your data (see the replication_mode configuration parameter).".into())); - } - - layout.staging.clear(); - layout.staging_hash = blake2sum(&rmp_to_vec_all_named(&layout.staging).unwrap()[..]); - match apply_opt.version { None => { println!("Please pass the --version flag to ensure that you are writing the correct version of the cluster layout."); @@ -218,6 +218,15 @@ pub async fn cmd_apply_layout( } } + layout.roles.merge(&layout.staging); + + if !layout.calculate_partition_assignation() { + return Err(Error::Message("Could not calculate new assignation of partitions to nodes. This can happen if there are less nodes than the desired number of copies of your data (see the replication_mode configuration parameter).".into())); + } + + layout.staging.clear(); + layout.staging_hash = blake2sum(&rmp_to_vec_all_named(&layout.staging).unwrap()[..]); + layout.version += 1; send_layout(rpc_cli, rpc_host, layout).await?; diff --git a/src/garage/cli/structs.rs b/src/garage/cli/structs.rs index 30cbb2da..a0c49aeb 100644 --- a/src/garage/cli/structs.rs +++ b/src/garage/cli/structs.rs @@ -92,8 +92,9 @@ pub enum LayoutOperation { #[derive(StructOpt, Debug)] pub struct AssignRoleOpt { - /// Node to which to assign role (prefix of hexadecimal node id) - pub(crate) node_id: String, + /// Node(s) to which to assign role (prefix of hexadecimal node id) + #[structopt(required = true)] + pub(crate) node_ids: Vec, /// Location (zone or datacenter) of the node #[structopt(short = "z", long = "zone")] -- cgit v1.2.3