Deployment and lifecycle management for Nix
cleanup: drop deprecated agent:* channel names, broadcasts, and permissions
Remove all backwards-compatible "agent:*" channel handlers, socket path,
broadcast duplicates, permission role, and old SowerClient type aliases
introduced during the Agent → Garden rename.
Also removes the deprecated DeploymentLogUploadRequest handler that was
already returning {:error, :deprecated}.
Includes a migration to update any existing agent:register access tokens
to garden:register.
sow-84
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
+32
-383
+1
-1
apps/peer_node/lib/peer_node.ex
+1
-1
apps/peer_node/lib/peer_node.ex
+1
-2
apps/sower/lib/sower/accounts/access_token.ex
+1
-2
apps/sower/lib/sower/accounts/access_token.ex
-22
apps/sower/lib/sower/orchestration/deployment.ex
-22
apps/sower/lib/sower/orchestration/deployment.ex
···
264
264
deployment_event_payload(retry_deployment, request_id)
265
265
)
266
266
267
-
# Backward compatibility: 0.7.0 gardens join "agent:*"
268
-
SowerWeb.Endpoint.broadcast(
269
-
"agent:#{retry_deployment.garden.sid}",
270
-
"deployment",
271
-
deployment_event_payload(retry_deployment, request_id)
272
-
)
273
-
274
267
retry_deployment
275
268
276
269
{:error, changeset} ->
···
309
302
request_id = SowerClient.Sid.generate("req")
310
303
payload = deployment_event_payload(deployment, request_id)
311
304
SowerWeb.Endpoint.broadcast("garden:#{garden.sid}", "deployment", payload)
312
-
SowerWeb.Endpoint.broadcast("agent:#{garden.sid}", "deployment", payload)
313
305
end)
314
306
315
307
# 4. Deploy fresh for all overdue subscriptions
···
423
415
Map.from_struct(deployment)
424
416
)
425
417
426
-
# Backward compatibility: 0.7.0 gardens join "agent:*"
427
-
SowerWeb.Endpoint.broadcast(
428
-
"agent:#{garden.sid}",
429
-
"deployment",
430
-
Map.from_struct(deployment)
431
-
)
432
-
433
418
{:error, reason} ->
434
419
Logger.error(
435
420
msg: "Deployment processing failed",
···
439
424
440
425
SowerWeb.Endpoint.broadcast(
441
426
"garden:#{garden.sid}",
442
-
"deployment:error",
443
-
%{request_id: request_id, reason: to_string(reason)}
444
-
)
445
-
446
-
# Backward compatibility: 0.7.0 gardens join "agent:*"
447
-
SowerWeb.Endpoint.broadcast(
448
-
"agent:#{garden.sid}",
449
427
"deployment:error",
450
428
%{request_id: request_id, reason: to_string(reason)}
451
429
)
-6
apps/sower/lib/sower/orchestration/deployment_pubsub.ex
-6
apps/sower/lib/sower/orchestration/deployment_pubsub.ex
···
26
26
"deployments:garden:#{deployment.garden.sid}",
27
27
{:deployment, event, deployment}
28
28
)
29
-
30
-
# Deprecated: kept for 0.7.0 LiveView backward compatibility
31
-
broadcast(
32
-
"deployments:agent:#{deployment.garden.sid}",
33
-
{:deployment, event, deployment}
34
-
)
35
29
end
36
30
37
31
Enum.each(deployment.subscriptions, fn subscription ->
-5
apps/sower/lib/sower_web/endpoint.ex
-5
apps/sower/lib/sower_web/endpoint.ex
···
22
22
websocket: [connect_info: [:x_headers]],
23
23
longpoll: false
24
24
25
-
# Deprecated: kept for 0.7.0 garden backward compatibility
26
-
socket "/agent", SowerWeb.GardenSocket,
27
-
websocket: [connect_info: [:x_headers]],
28
-
longpoll: false
29
-
30
25
# Serve at "/" the static files from "priv/static" directory.
31
26
#
32
27
# You should set gzip to true if you are running phx.digest
-36
apps/sower/lib/sower_web/garden_channel.ex
-36
apps/sower/lib/sower_web/garden_channel.ex
···
27
27
28
28
@impl Phoenix.Channel
29
29
def join("garden:lobby", message, socket), do: do_join_lobby(message, socket)
30
-
def join("agent:lobby", message, socket), do: do_join_lobby(message, socket)
31
30
32
31
def join("garden:" <> topic_sid = topic, params, socket),
33
-
do: do_join_private(topic_sid, topic, params, socket)
34
-
35
-
def join("agent:" <> topic_sid = topic, params, socket),
36
32
do: do_join_private(topic_sid, topic, params, socket)
37
33
38
34
def join(topic, params, socket) do
···
105
101
{:reply, :ok, socket}
106
102
end
107
103
108
-
# Accept both "garden:hello" and "agent:hello"
109
104
def handle_in("garden:hello", payload, socket), do: do_handle_hello(payload, socket)
110
-
def handle_in("agent:hello", payload, socket), do: do_handle_hello(payload, socket)
111
105
112
106
defp do_handle_hello(payload, socket) do
113
107
case payload
114
-
|> normalize_hello_payload()
115
108
|> SowerClient.GardenHello.cast!()
116
109
|> Sower.Orchestration.get_garden(socket) do
117
110
{:ok, garden, oauth_credentials} ->
···
134
127
end
135
128
end
136
129
137
-
# Accept both "agent_sid" (legacy) and "garden_sid" from hello payloads
138
-
defp normalize_hello_payload(%{"agent_sid" => sid} = payload) when is_binary(sid) do
139
-
payload
140
-
|> Map.delete("agent_sid")
141
-
|> Map.put_new("garden_sid", sid)
142
-
end
143
-
144
-
defp normalize_hello_payload(payload), do: payload
145
-
146
130
handle_schema(SowerClient.Seed, &Sower.Orchestration.Seed.get_by_request/1)
147
131
148
132
handle_schema(SowerClient.Orchestration.Subscription, fn req, socket ->
···
191
175
Sower.Orchestration.SeedDeployment.record_seed_result(req, socket.assigns.garden)
192
176
end)
193
177
194
-
# Accept both new and old seeds report events
195
178
handle_schema(SowerClient.Orchestration.GardenSeedsReport, fn report, socket ->
196
179
Orchestration.update_garden_seed_generations(report, socket.assigns.garden)
197
180
end)
198
181
199
-
handle_schema(SowerClient.Orchestration.AgentSeedsReport, fn report, socket ->
200
-
# Convert legacy AgentSeedsReport to GardenSeedsReport for internal handling
201
-
report = struct(SowerClient.Orchestration.GardenSeedsReport, Map.from_struct(report))
202
-
Orchestration.update_garden_seed_generations(report, socket.assigns.garden)
203
-
end)
204
-
205
-
# Kept for backward compatibility with old gardens that still upload logs to S3.
206
-
# New gardens send SeedDeploymentResult instead.
207
-
# remove 0.7.0
208
-
handle_schema(SowerClient.Storage.DeploymentLogUploadRequest, fn _req, _socket ->
209
-
{:error, :deprecated}
210
-
end)
211
-
212
182
@impl Phoenix.Channel
213
183
def handle_info(:track_presence, %Phoenix.Socket{assigns: %{garden: garden}} = socket) do
214
184
Logger.debug(msg: "Tracking garden presence", garden_sid: garden.sid)
215
185
216
186
{:ok, _} =
217
187
Presence.track(self(), "garden:presence", socket.assigns.garden.sid, %{
218
-
online_at: DateTime.utc_now()
219
-
})
220
-
221
-
# Also track on legacy topic for 0.7.0 LiveView compatibility
222
-
{:ok, _} =
223
-
Presence.track(self(), "agent:presence", socket.assigns.garden.sid, %{
224
188
online_at: DateTime.utc_now()
225
189
})
226
190
-1
apps/sower/lib/sower_web/garden_socket.ex
-1
apps/sower/lib/sower_web/garden_socket.ex
+24
apps/sower/priv/repo/migrations/20260411145412_migrate_agent_register_to_garden_register.exs
+24
apps/sower/priv/repo/migrations/20260411145412_migrate_agent_register_to_garden_register.exs
···
1
+
defmodule Sower.Repo.Migrations.MigrateAgentRegisterToGardenRegister do
2
+
use Ecto.Migration
3
+
4
+
def up do
5
+
execute("""
6
+
UPDATE access_tokens
7
+
SET permissions = (
8
+
SELECT jsonb_agg(
9
+
CASE
10
+
WHEN elem->>'role' = 'agent:register'
11
+
THEN jsonb_set(elem, '{role}', '"garden:register"')
12
+
ELSE elem
13
+
END
14
+
)
15
+
FROM jsonb_array_elements(permissions) AS elem
16
+
)
17
+
WHERE permissions::text LIKE '%agent:register%'
18
+
""")
19
+
end
20
+
21
+
def down do
22
+
:ok
23
+
end
24
+
end
+4
-4
apps/sower/test/sower/orchestration_test.exs
+4
-4
apps/sower/test/sower/orchestration_test.exs
···
1034
1034
})
1035
1035
1036
1036
replayed_at = DateTime.utc_now() |> DateTime.truncate(:second)
1037
-
Phoenix.PubSub.subscribe(Sower.PubSub, "agent:#{garden.sid}")
1037
+
Phoenix.PubSub.subscribe(Sower.PubSub, "garden:#{garden.sid}")
1038
1038
1039
1039
assert {:ok, %{replayed: replayed, cancelled: [], overdue: []}} =
1040
1040
Orchestration.Deployment.reconcile_deployments_on_connect(garden, now: replayed_at)
···
1047
1047
payload: payload
1048
1048
}
1049
1049
1050
-
assert topic == "agent:#{garden.sid}"
1050
+
assert topic == "garden:#{garden.sid}"
1051
1051
assert payload.sid == unresolved.sid
1052
1052
assert payload.skipped == false
1053
1053
assert is_binary(payload.request_id)
···
1408
1408
deployed_at: DateTime.utc_now()
1409
1409
})
1410
1410
1411
-
Phoenix.PubSub.subscribe(Sower.PubSub, "agent:#{garden.sid}")
1411
+
Phoenix.PubSub.subscribe(Sower.PubSub, "garden:#{garden.sid}")
1412
1412
1413
1413
assert {:ok, retried} = Orchestration.retry_deployment(deployment, user.id)
1414
1414
···
1418
1418
payload: payload
1419
1419
}
1420
1420
1421
-
assert topic == "agent:#{garden.sid}"
1421
+
assert topic == "garden:#{garden.sid}"
1422
1422
assert payload.sid == retried.sid
1423
1423
assert payload.skipped == false
1424
1424
assert is_binary(payload.request_id)
-28
apps/sower/test/sower_web/channels/garden_channel_handle_in_test.exs
-28
apps/sower/test/sower_web/channels/garden_channel_handle_in_test.exs
···
54
54
refute Map.has_key?(reply.oauth_credentials, :refresh_token)
55
55
refute Map.has_key?(reply.oauth_credentials, :access_token)
56
56
end
57
-
58
-
test "accepts legacy agent:hello event" do
59
-
%{socket: socket, garden: garden} = connect_and_join_garden()
60
-
61
-
ref =
62
-
push(socket, "agent:hello", %{
63
-
"garden_sid" => garden.sid,
64
-
"local_sid" => garden.local_sid,
65
-
"name" => garden.name
66
-
})
67
-
68
-
assert_reply ref, :ok, reply, 1_000
69
-
assert reply.sid == garden.sid
70
-
end
71
-
72
-
test "normalizes legacy agent_sid field to garden_sid" do
73
-
%{socket: socket, garden: garden} = connect_and_join_garden()
74
-
75
-
ref =
76
-
push(socket, "garden:hello", %{
77
-
"agent_sid" => garden.sid,
78
-
"local_sid" => garden.local_sid,
79
-
"name" => garden.name
80
-
})
81
-
82
-
assert_reply ref, :ok, reply, 1_000
83
-
assert reply.sid == garden.sid
84
-
end
85
57
end
86
58
87
59
describe "deployment:request" do
-33
apps/sower/test/sower_web/channels/garden_channel_test.exs
-33
apps/sower/test/sower_web/channels/garden_channel_test.exs
···
64
64
assert socket.assigns.garden.id == garden.id
65
65
end
66
66
67
-
test "accepts legacy agent: topic prefix" do
68
-
user = user_fixture()
69
-
Sower.Repo.put_org_id(user.org_id)
70
-
71
-
{:ok, access_token} =
72
-
Sower.Accounts.AccessToken.create(%{
73
-
"description" => "test",
74
-
"user_id" => user.id,
75
-
"org_id" => user.org_id,
76
-
"permissions" => [%{"role" => "garden:register"}]
77
-
})
78
-
79
-
garden =
80
-
garden_fixture(%{
81
-
sid: SowerClient.Sid.generate("grdn"),
82
-
local_sid: SowerClient.Sid.generate("lc_grdn")
83
-
})
84
-
85
-
encoded_token = Base.encode64(access_token.token)
86
-
87
-
{:ok, socket} = connect(SowerWeb.GardenSocket, %{"token" => encoded_token})
88
-
89
-
{:ok, _reply, socket} =
90
-
subscribe_and_join(
91
-
socket,
92
-
SowerWeb.GardenChannel,
93
-
"agent:#{garden.sid}",
94
-
%{"local_sid" => garden.local_sid}
95
-
)
96
-
97
-
assert socket.assigns.garden.id == garden.id
98
-
end
99
-
100
67
test "rejects join when garden does not exist" do
101
68
user = user_fixture()
102
69
Sower.Repo.put_org_id(user.org_id)
+2
-2
apps/sower/test/sower_web/live/settings/access_token_live_test.exs
+2
-2
apps/sower/test/sower_web/live/settings/access_token_live_test.exs
···
122
122
123
123
{:ok, updated} =
124
124
Sower.Accounts.AccessToken.update(token, %{
125
-
"permissions" => ["nix-cache:read", "agent:register"]
125
+
"permissions" => ["nix-cache:read", "garden:register"]
126
126
})
127
127
128
128
roles = Enum.map(updated.permissions, & &1.role)
129
129
assert :"nix-cache:read" in roles
130
-
assert :"agent:register" in roles
130
+
assert :"garden:register" in roles
131
131
refute :"seed:read" in roles
132
132
end
133
133
end
-5
apps/sower_client/lib/sower_client.ex
-5
apps/sower_client/lib/sower_client.ex
···
25
25
|> OpenApiSpex.add_schemas([
26
26
SowerClient.GardenHello,
27
27
SowerClient.GardenRegistration,
28
-
SowerClient.AgentHello,
29
28
SowerClient.Auth.OAuthCredentials,
30
29
SowerClient.Auth.TokenInfo,
31
30
SowerClient.Orchestration.GardenSeedGeneration,
32
31
SowerClient.Orchestration.GardenSeedProfile,
33
32
SowerClient.Orchestration.GardenSeedsReport,
34
-
SowerClient.Orchestration.AgentSeedGeneration,
35
-
SowerClient.Orchestration.AgentSeedProfile,
36
-
SowerClient.Orchestration.AgentSeedsReport,
37
33
SowerClient.Orchestration.Deployment,
38
34
SowerClient.Orchestration.DeploymentResult,
39
35
SowerClient.Orchestration.DeploymentRequest,
···
45
41
SowerClient.Orchestration.Subscription.Window,
46
42
SowerClient.Orchestration.SubscriptionSync,
47
43
SowerClient.Storage.PresignedUploadReply,
48
-
SowerClient.Storage.DeploymentLogUploadRequest,
49
44
SowerClient.Seed,
50
45
SowerClient.SeedMeta,
51
46
SowerClient.SeedTag
-28
apps/sower_client/lib/sower_client/agent_hello.ex
-28
apps/sower_client/lib/sower_client/agent_hello.ex
···
1
-
# Deprecated: use SowerClient.GardenHello
2
-
# Kept as alias for 0.7.0 backward compatibility
3
-
defmodule SowerClient.AgentHello do
4
-
use SowerClient.Schema
5
-
use SowerClient.ChannelMessage, event: "agent:hello", topic_type: :lobby
6
-
7
-
OpenApiSpex.schema(%{
8
-
title: "AgentHello",
9
-
type: :object,
10
-
properties: %{
11
-
agent_sid: %Schema{
12
-
type: :string,
13
-
description: "sid allocated by Sower",
14
-
readOnly: true,
15
-
nullable: true
16
-
},
17
-
local_sid: %Schema{
18
-
type: :string,
19
-
description: "sid allocated locally"
20
-
},
21
-
name: %Schema{
22
-
type: :string,
23
-
description: "Name of agent"
24
-
}
25
-
},
26
-
required: [:local_sid, :name]
27
-
})
28
-
end
-37
apps/sower_client/lib/sower_client/orchestration/agent_seed_generation.ex
-37
apps/sower_client/lib/sower_client/orchestration/agent_seed_generation.ex
···
1
-
defmodule SowerClient.Orchestration.AgentSeedGeneration do
2
-
@moduledoc """
3
-
Represents a single Nix profile generation reported by an agent.
4
-
"""
5
-
use SowerClient.Schema
6
-
7
-
OpenApiSpex.schema(%{
8
-
title: "AgentSeedGeneration",
9
-
type: :object,
10
-
properties: %{
11
-
path: %Schema{
12
-
type: :string,
13
-
description: "The Nix store path (e.g., /nix/store/abc-nixos-system)"
14
-
},
15
-
link: %Schema{
16
-
type: :string,
17
-
description: "The symlink path (e.g., /nix/var/nix/profiles/system-42-link)"
18
-
},
19
-
created: %Schema{
20
-
type: :string,
21
-
format: :"date-time",
22
-
description: "When the Nix generation was created"
23
-
},
24
-
generation_number: %Schema{
25
-
type: :integer,
26
-
description: "Nix generation number (extracted from link)",
27
-
nullable: true
28
-
},
29
-
is_current: %Schema{
30
-
type: :boolean,
31
-
description: "Is this the active generation?",
32
-
default: false
33
-
}
34
-
},
35
-
required: [:path, :link, :created, :is_current]
36
-
})
37
-
end
-29
apps/sower_client/lib/sower_client/orchestration/agent_seed_profile.ex
-29
apps/sower_client/lib/sower_client/orchestration/agent_seed_profile.ex
···
1
-
defmodule SowerClient.Orchestration.AgentSeedProfile do
2
-
@moduledoc """
3
-
Represents all generations for a single Nix profile on an agent.
4
-
"""
5
-
use SowerClient.Schema
6
-
7
-
OpenApiSpex.schema(%{
8
-
title: "AgentSeedProfile",
9
-
type: :object,
10
-
properties: %{
11
-
profile_path: %Schema{
12
-
type: :string,
13
-
description: "The Nix profile path (e.g., /nix/var/nix/profiles/system)"
14
-
},
15
-
tags: %Schema{
16
-
type: :object,
17
-
additionalProperties: %Schema{type: :string},
18
-
description: "Profile tags (e.g., %{user: alice} for HomeManager)",
19
-
default: %{}
20
-
},
21
-
generations: %Schema{
22
-
type: :array,
23
-
items: SowerClient.Orchestration.AgentSeedGeneration,
24
-
description: "All available generations for this profile"
25
-
}
26
-
},
27
-
required: [:profile_path, :generations]
28
-
})
29
-
end
-23
apps/sower_client/lib/sower_client/orchestration/agent_seeds_report.ex
-23
apps/sower_client/lib/sower_client/orchestration/agent_seeds_report.ex
···
1
-
# Deprecated: use SowerClient.Orchestration.GardenSeedsReport
2
-
# Kept as alias for 0.7.0 backward compatibility
3
-
defmodule SowerClient.Orchestration.AgentSeedsReport do
4
-
@moduledoc """
5
-
Deprecated: use SowerClient.Orchestration.GardenSeedsReport.
6
-
Kept for backward compatibility with 0.7.0 gardens.
7
-
"""
8
-
use SowerClient.Schema
9
-
use SowerClient.ChannelMessage, event: "agent:seeds:report"
10
-
11
-
OpenApiSpex.schema(%{
12
-
title: "AgentSeedsReport",
13
-
type: :object,
14
-
properties: %{
15
-
profiles: %Schema{
16
-
type: :array,
17
-
items: SowerClient.Orchestration.GardenSeedProfile,
18
-
description: "All Nix profiles with their generations"
19
-
}
20
-
},
21
-
required: [:profiles]
22
-
})
23
-
end
-25
apps/sower_client/lib/sower_client/storage/deployment_log_upload_request.ex
-25
apps/sower_client/lib/sower_client/storage/deployment_log_upload_request.ex
···
1
-
defmodule SowerClient.Storage.DeploymentLogUploadRequest do
2
-
use SowerClient.Schema
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use SowerClient.ChannelMessage, event: "storage:deployment_log_upload"
4
-
5
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OpenApiSpex.schema(%{
6
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title: "DeploymentLogUploadRequest",
7
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type: :object,
8
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properties: %{
9
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deployment_sid: %Schema{
10
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type: :string,
11
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description: "SID of the deployment the log belongs to"
12
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},
13
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seed_sid: %Schema{
14
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type: :string,
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description: "SID of the seed within the deployment"
16
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},
17
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checksum_sha256: %Schema{
18
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type: :string,
19
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description: "Base64 SHA-256 checksum to sign for upload integrity",
20
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nullable: true
21
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}
22
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},
23
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required: [:deployment_sid, :seed_sid]
24
-
})
25
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end
-87
apps/sower_client/test/sower_client/storage/deployment_log_upload_test.exs
-87
apps/sower_client/test/sower_client/storage/deployment_log_upload_test.exs
···
1
-
defmodule SowerClient.Storage.DeploymentLogUploadTest do
2
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use ExUnit.Case, async: true
3
-
4
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alias SowerClient.Storage.DeploymentLogUploadRequest
5
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alias SowerClient.Storage.PresignedUploadReply
6
-
7
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describe "DeploymentLogUploadRequest" do
8
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test "cast/1 with valid data succeeds" do
9
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assert {:ok, request} =
10
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DeploymentLogUploadRequest.cast(%{
11
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"deployment_sid" => "deploy_123",
12
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"seed_sid" => "seed_456",
13
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"checksum_sha256" => "abc123"
14
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})
15
-
16
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assert request.deployment_sid == "deploy_123"
17
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assert request.seed_sid == "seed_456"
18
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assert request.checksum_sha256 == "abc123"
19
-
end
20
-
21
-
test "cast/1 without checksum succeeds" do
22
-
assert {:ok, request} =
23
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DeploymentLogUploadRequest.cast(%{
24
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"deployment_sid" => "deploy_123",
25
-
"seed_sid" => "seed_456"
26
-
})
27
-
28
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assert request.deployment_sid == "deploy_123"
29
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assert request.seed_sid == "seed_456"
30
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assert request.checksum_sha256 == nil
31
-
end
32
-
33
-
test "cast/1 with missing deployment_sid fails" do
34
-
assert {:error, _} =
35
-
DeploymentLogUploadRequest.cast(%{
36
-
"seed_sid" => "seed_456"
37
-
})
38
-
end
39
-
40
-
test "cast/1 with missing seed_sid fails" do
41
-
assert {:error, _} =
42
-
DeploymentLogUploadRequest.cast(%{
43
-
"deployment_sid" => "deploy_123"
44
-
})
45
-
end
46
-
47
-
test "event/0 returns correct channel event" do
48
-
assert DeploymentLogUploadRequest.event() == "storage:deployment_log_upload"
49
-
end
50
-
end
51
-
52
-
describe "PresignedUploadReply" do
53
-
test "cast/1 with valid data succeeds" do
54
-
assert {:ok, reply} =
55
-
PresignedUploadReply.cast(%{
56
-
"url" => "https://s3.example.com/upload",
57
-
"method" => "PUT",
58
-
"headers" => %{"x-amz-checksum-sha256" => "abc123"}
59
-
})
60
-
61
-
assert reply.url == "https://s3.example.com/upload"
62
-
assert reply.method == "PUT"
63
-
assert reply.headers == %{"x-amz-checksum-sha256" => "abc123"}
64
-
end
65
-
66
-
test "cast!/1 with valid data returns struct" do
67
-
reply =
68
-
PresignedUploadReply.cast!(%{
69
-
"url" => "https://s3.example.com/upload",
70
-
"method" => "PUT",
71
-
"headers" => %{}
72
-
})
73
-
74
-
assert reply.url == "https://s3.example.com/upload"
75
-
assert reply.method == "PUT"
76
-
assert reply.headers == %{}
77
-
end
78
-
79
-
test "cast/1 with missing required gardens fails" do
80
-
assert {:error, _} =
81
-
PresignedUploadReply.cast(%{
82
-
"method" => "PUT",
83
-
"headers" => %{}
84
-
})
85
-
end
86
-
end
87
-
end