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Merged
david-crespo merged 2 commits into from
Sep 18, 2025
Merged

InstanceUpdate body: change Option fields to Nullable so they're required to be present #9046

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2bbcbd5
option -> nullable for instance update fields
david-crespo Sep 18, 2025
d44418d
doc comment tweak, eschew &**
david-crespo Sep 18, 2025
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2 changes: 1 addition & 1 deletion nexus/src/app/instance.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -367,7 +367,7 @@ impl super::Nexus {

check_instance_cpu_memory_sizes(*ncpus, *memory)?;

let boot_disk_id = match boot_disk {
let boot_disk_id = match &**boot_disk {
Some(disk) => {
let selector = params::DiskSelector {
project: match &disk {
Expand Down
6 changes: 3 additions & 3 deletions nexus/tests/integration_tests/endpoints.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -687,9 +687,9 @@ pub static DEMO_STOPPED_INSTANCE_CREATE: LazyLock<params::InstanceCreate> =
});
pub static DEMO_INSTANCE_UPDATE: LazyLock<params::InstanceUpdate> =
LazyLock::new(|| params::InstanceUpdate {
boot_disk: None,
cpu_platform: None,
auto_restart_policy: None,
boot_disk: Nullable(None),
cpu_platform: Nullable(None),
auto_restart_policy: Nullable(None),
ncpus: InstanceCpuCount(1),
memory: ByteCount::from_gibibytes_u32(16),
});
Expand Down
107 changes: 50 additions & 57 deletions nexus/tests/integration_tests/instances.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,7 @@ use omicron_common::api::external::InstanceNetworkInterface;
use omicron_common::api::external::InstanceState;
use omicron_common::api::external::Name;
use omicron_common::api::external::NameOrId;
use omicron_common::api::external::Nullable;
use omicron_common::api::external::Vni;
use omicron_common::api::internal::shared::ResolvedVpcRoute;
use omicron_common::api::internal::shared::RouterId;
Expand Down Expand Up @@ -4920,9 +4921,9 @@ async fn test_cannot_detach_boot_disk(cptestctx: &ControlPlaneTestContext) {
&client,
&instance.identity.id,
params::InstanceUpdate {
boot_disk: None,
auto_restart_policy: None,
cpu_platform: None,
boot_disk: Nullable(None),
auto_restart_policy: Nullable(None),
cpu_platform: Nullable(None),
ncpus: InstanceCpuCount::try_from(2).unwrap(),
memory: ByteCount::from_gibibytes_u32(4),
},
Expand Down Expand Up @@ -5025,9 +5026,9 @@ async fn test_updating_running_instance_boot_disk_is_conflict(
&client,
&instance_id.into_untyped_uuid(),
params::InstanceUpdate {
boot_disk: Some(alsodata.clone().into()),
auto_restart_policy: None,
cpu_platform: None,
boot_disk: Nullable(Some(alsodata.clone().into())),
auto_restart_policy: Nullable(None),
cpu_platform: Nullable(None),
ncpus: InstanceCpuCount::try_from(2).unwrap(),
memory: ByteCount::from_gibibytes_u32(4),
},
Expand All @@ -5044,9 +5045,11 @@ async fn test_updating_running_instance_boot_disk_is_conflict(
params::InstanceUpdate {
// Leave the boot disk the same as the one with which the instance
// was created.
boot_disk: Some(probablydata.clone().into()),
auto_restart_policy: Some(InstanceAutoRestartPolicy::BestEffort),
cpu_platform: None,
boot_disk: Nullable(Some(probablydata.clone().into())),
auto_restart_policy: Nullable(Some(
InstanceAutoRestartPolicy::BestEffort,
)),
cpu_platform: Nullable(None),
ncpus: InstanceCpuCount::try_from(2).unwrap(),
memory: ByteCount::from_gibibytes_u32(4),
},
Expand All @@ -5067,9 +5070,9 @@ async fn test_updating_missing_instance_is_not_found(
&client,
&UUID_THAT_DOESNT_EXIST,
params::InstanceUpdate {
boot_disk: None,
auto_restart_policy: None,
cpu_platform: None,
boot_disk: Nullable(None),
auto_restart_policy: Nullable(None),
cpu_platform: Nullable(None),
ncpus: InstanceCpuCount::try_from(0).unwrap(),
memory: ByteCount::from_gibibytes_u32(0),
},
Expand Down Expand Up @@ -5185,16 +5188,22 @@ async fn test_size_can_be_changed(cptestctx: &ControlPlaneTestContext) {
let new_ncpus = InstanceCpuCount::try_from(4).unwrap();
let new_memory = ByteCount::from_gibibytes_u32(8);

let base_update = params::InstanceUpdate {
auto_restart_policy: Nullable(auto_restart_policy),
boot_disk: Nullable(boot_disk_nameorid.clone()),
cpu_platform: Nullable(None),
ncpus: initial_ncpus,
memory: initial_memory,
};
Comment on lines +5191 to +5197
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@ahl ahl Sep 18, 2025

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is this to avoid repeating code? For what it's worth, I found the prior structure easier to understand--especially when looking locally. Is your thought that this makes it easier to add new settings in the future? Perhaps this argues for a PATCH interface.

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@david-crespo david-crespo Sep 18, 2025

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Yes, this was basically me grumbling about the fact that I would have had to fix a lot fewer lines of code if this had already been in place. But that is a narrow reason and it's easy to change it back.


// Resizing the instance immediately will error; the instance is running.
let err = expect_instance_reconfigure_err(
client,
&instance.identity.id,
params::InstanceUpdate {
auto_restart_policy,
boot_disk: boot_disk_nameorid.clone(),
cpu_platform: None,
ncpus: new_ncpus,
memory: new_memory,
..base_update.clone()
},
StatusCode::CONFLICT,
)
Expand All @@ -5213,11 +5222,9 @@ async fn test_size_can_be_changed(cptestctx: &ControlPlaneTestContext) {
client,
&instance.identity.id,
params::InstanceUpdate {
auto_restart_policy,
boot_disk: boot_disk_nameorid.clone(),
cpu_platform: None,
ncpus: new_ncpus,
memory: new_memory,
..base_update.clone()
},
)
.await;
Expand All @@ -5229,11 +5236,9 @@ async fn test_size_can_be_changed(cptestctx: &ControlPlaneTestContext) {
client,
&instance.identity.id,
params::InstanceUpdate {
auto_restart_policy,
boot_disk: boot_disk_nameorid.clone(),
cpu_platform: None,
ncpus: initial_ncpus,
memory: new_memory,
..base_update.clone()
},
)
.await;
Expand All @@ -5244,11 +5249,9 @@ async fn test_size_can_be_changed(cptestctx: &ControlPlaneTestContext) {
client,
&instance.identity.id,
params::InstanceUpdate {
auto_restart_policy,
boot_disk: boot_disk_nameorid.clone(),
cpu_platform: None,
ncpus: initial_ncpus,
memory: initial_memory,
..base_update.clone()
},
)
.await;
Expand All @@ -5263,11 +5266,9 @@ async fn test_size_can_be_changed(cptestctx: &ControlPlaneTestContext) {
client,
&instance.identity.id,
params::InstanceUpdate {
auto_restart_policy,
boot_disk: boot_disk_nameorid.clone(),
cpu_platform: None,
ncpus: InstanceCpuCount(MAX_VCPU_PER_INSTANCE + 1),
memory: instance.memory,
..base_update.clone()
},
StatusCode::BAD_REQUEST,
)
Expand All @@ -5285,11 +5286,9 @@ async fn test_size_can_be_changed(cptestctx: &ControlPlaneTestContext) {
client,
&instance.identity.id,
params::InstanceUpdate {
auto_restart_policy,
boot_disk: boot_disk_nameorid.clone(),
cpu_platform: None,
ncpus: instance.ncpus,
memory: ByteCount::from_mebibytes_u32(0),
..base_update.clone()
},
StatusCode::BAD_REQUEST,
)
Expand All @@ -5301,12 +5300,10 @@ async fn test_size_can_be_changed(cptestctx: &ControlPlaneTestContext) {
client,
&instance.identity.id,
params::InstanceUpdate {
auto_restart_policy,
boot_disk: boot_disk_nameorid.clone(),
cpu_platform: None,
ncpus: instance.ncpus,
memory: ByteCount::try_from(MAX_MEMORY_BYTES_PER_INSTANCE - 1)
.unwrap(),
..base_update.clone()
},
StatusCode::BAD_REQUEST,
)
Expand All @@ -5319,13 +5316,11 @@ async fn test_size_can_be_changed(cptestctx: &ControlPlaneTestContext) {
client,
&instance.identity.id,
params::InstanceUpdate {
auto_restart_policy,
boot_disk: boot_disk_nameorid.clone(),
cpu_platform: None,
ncpus: instance.ncpus,
memory: ByteCount::from_mebibytes_u32(
(max_mib + 1024).try_into().unwrap(),
),
..base_update.clone()
},
StatusCode::BAD_REQUEST,
)
Expand All @@ -5342,11 +5337,9 @@ async fn test_size_can_be_changed(cptestctx: &ControlPlaneTestContext) {
client,
&instance.identity.id,
params::InstanceUpdate {
auto_restart_policy,
boot_disk: boot_disk_nameorid.clone(),
cpu_platform: None,
ncpus: new_ncpus,
memory: new_memory,
..base_update.clone()
},
StatusCode::NOT_FOUND,
)
Expand Down Expand Up @@ -5404,9 +5397,9 @@ async fn test_auto_restart_policy_can_be_changed(
client,
&instance.identity.id,
dbg!(params::InstanceUpdate {
auto_restart_policy,
boot_disk: None,
cpu_platform: None,
auto_restart_policy: Nullable(auto_restart_policy),
boot_disk: Nullable(None),
cpu_platform: Nullable(None),
ncpus: InstanceCpuCount::try_from(2).unwrap(),
memory: ByteCount::from_gibibytes_u32(4),
}),
Expand Down Expand Up @@ -5477,9 +5470,9 @@ async fn test_cpu_platform_can_be_changed(cptestctx: &ControlPlaneTestContext) {
client,
&instance.identity.id,
dbg!(params::InstanceUpdate {
auto_restart_policy: None,
boot_disk: None,
cpu_platform,
auto_restart_policy: Nullable(None),
boot_disk: Nullable(None),
cpu_platform: Nullable(cpu_platform),
ncpus: InstanceCpuCount::try_from(2).unwrap(),
memory: ByteCount::from_gibibytes_u32(4),
}),
Expand Down Expand Up @@ -5572,9 +5565,9 @@ async fn test_boot_disk_can_be_changed(cptestctx: &ControlPlaneTestContext) {
&client,
&instance.identity.id,
params::InstanceUpdate {
boot_disk: Some(disks[1].identity.id.into()),
auto_restart_policy: None,
cpu_platform: None,
boot_disk: Nullable(Some(disks[1].identity.id.into())),
auto_restart_policy: Nullable(None),
cpu_platform: Nullable(None),
ncpus: InstanceCpuCount::try_from(2).unwrap(),
memory: ByteCount::from_gibibytes_u32(4),
},
Expand Down Expand Up @@ -5641,9 +5634,9 @@ async fn test_boot_disk_must_be_attached(cptestctx: &ControlPlaneTestContext) {
&client,
&instance.identity.id,
params::InstanceUpdate {
boot_disk: Some(disks[0].identity.id.into()),
auto_restart_policy: None,
cpu_platform: None,
boot_disk: Nullable(Some(disks[0].identity.id.into())),
auto_restart_policy: Nullable(None),
cpu_platform: Nullable(None),
ncpus: InstanceCpuCount::try_from(2).unwrap(),
memory: ByteCount::from_gibibytes_u32(4),
},
Expand Down Expand Up @@ -5675,9 +5668,9 @@ async fn test_boot_disk_must_be_attached(cptestctx: &ControlPlaneTestContext) {
&client,
&instance.identity.id,
params::InstanceUpdate {
boot_disk: Some(disks[0].identity.id.into()),
auto_restart_policy: None,
cpu_platform: None,
boot_disk: Nullable(Some(disks[0].identity.id.into())),
auto_restart_policy: Nullable(None),
cpu_platform: Nullable(None),
ncpus: InstanceCpuCount::try_from(2).unwrap(),
memory: ByteCount::from_gibibytes_u32(4),
},
Expand Down Expand Up @@ -6654,9 +6647,9 @@ async fn test_can_start_instance_with_cpu_platform(
&client,
&instance.identity.id,
params::InstanceUpdate {
boot_disk: None,
auto_restart_policy: None,
cpu_platform: Some(InstanceCpuPlatform::AmdTurin),
boot_disk: Nullable(None),
auto_restart_policy: Nullable(None),
cpu_platform: Nullable(Some(InstanceCpuPlatform::AmdTurin)),
ncpus: InstanceCpuCount::try_from(1).unwrap(),
memory: ByteCount::from_gibibytes_u32(4),
},
Expand Down
6 changes: 3 additions & 3 deletions nexus/types/src/external_api/params.rs
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Expand Up @@ -1302,7 +1302,7 @@ pub struct InstanceUpdate {
/// Name or ID of the disk the instance should be instructed to boot from.
///
/// If not provided, unset the instance's boot disk.
pub boot_disk: Option<NameOrId>,
pub boot_disk: Nullable<NameOrId>,

/// Sets the auto-restart policy for this instance.
///
Expand All @@ -1318,11 +1318,11 @@ pub struct InstanceUpdate {
/// configurable through other mechanisms, such as on a per-project basis.
/// In that case, any configured default policy will be used if this is
/// `null`.
pub auto_restart_policy: Option<InstanceAutoRestartPolicy>,
pub auto_restart_policy: Nullable<InstanceAutoRestartPolicy>,

/// The CPU platform to be used for this instance. If this is `null`, the
/// instance requires no particular CPU platform.
pub cpu_platform: Option<InstanceCpuPlatform>,
pub cpu_platform: Nullable<InstanceCpuPlatform>,
}

#[inline]
Expand Down
3 changes: 3 additions & 0 deletions openapi/nexus.json
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Expand Up @@ -20876,6 +20876,9 @@
}
},
"required": [
"auto_restart_policy",
"boot_disk",
"cpu_platform",
"memory",
"ncpus"
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@david-crespo david-crespo Sep 18, 2025

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This lets the TS client generator mark these fields as nullable but not optional.

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@iximeow iximeow Sep 18, 2025

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nice, this rules.

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@ahl ahl Sep 18, 2025

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FWIW, the Rust generator doesn't (currently) draw this distinction; I don't know about the go generator.

]
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