Implement Monlet MVP stack and UI updates
This commit is contained in:
Stanislav Rossovskii
48
server/alembic/env.py
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48
server/alembic/env.py
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import os
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from logging.config import fileConfig
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from sqlalchemy import engine_from_config, pool
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from alembic import context
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from monlet_server.models import Base
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config = context.config
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if config.config_file_name is not None:
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fileConfig(config.config_file_name)
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target_metadata = Base.metadata
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database_url = os.environ.get(
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"MONLET_DATABASE_URL", "postgresql+asyncpg://monlet:monlet@127.0.0.1:5432/monlet"
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)
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config.set_main_option("sqlalchemy.url", database_url.replace("+asyncpg", "+psycopg"))
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def run_migrations_offline() -> None:
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url = config.get_main_option("sqlalchemy.url")
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context.configure(
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url=url,
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target_metadata=target_metadata,
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literal_binds=True,
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dialect_opts={"paramstyle": "named"},
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)
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with context.begin_transaction():
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context.run_migrations()
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def run_migrations_online() -> None:
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connectable = engine_from_config(
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config.get_section(config.config_ini_section, {}),
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prefix="sqlalchemy.",
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poolclass=pool.NullPool,
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)
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with connectable.connect() as connection:
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context.configure(connection=connection, target_metadata=target_metadata)
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with context.begin_transaction():
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context.run_migrations()
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if context.is_offline_mode():
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run_migrations_offline()
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else:
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run_migrations_online()
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25
server/alembic/script.py.mako
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25
server/alembic/script.py.mako
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"""${message}
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Revision ID: ${up_revision}
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Revises: ${down_revision | comma,n}
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Create Date: ${create_date}
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"""
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from typing import Sequence, Union
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from alembic import op
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import sqlalchemy as sa
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${imports if imports else ""}
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revision: str = ${repr(up_revision)}
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down_revision: Union[str, None] = ${repr(down_revision)}
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branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
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depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
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def upgrade() -> None:
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${upgrades if upgrades else "pass"}
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def downgrade() -> None:
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${downgrades if downgrades else "pass"}
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123
server/alembic/versions/0001_baseline.py
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123
server/alembic/versions/0001_baseline.py
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"""baseline schema (ADR-0004)
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Revision ID: 0001_baseline
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Revises:
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Create Date: 2026-05-26
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"""
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from collections.abc import Sequence
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from alembic import op
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revision: str = "0001_baseline"
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down_revision: str | None = None
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branch_labels: str | Sequence[str] | None = None
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depends_on: str | Sequence[str] | None = None
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def upgrade() -> None:
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op.execute(
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"""
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CREATE TABLE agents (
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agent_id TEXT PRIMARY KEY,
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hostname TEXT NOT NULL,
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status TEXT NOT NULL CHECK (status IN ('alive','stale','dead')) DEFAULT 'alive',
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last_seen_at TIMESTAMPTZ NOT NULL,
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features JSONB NOT NULL DEFAULT jsonb_build_object('push', false, 'metrics', false),
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labels JSONB NOT NULL DEFAULT '{}'::jsonb,
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created_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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"""
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)
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op.execute("CREATE INDEX agents_status_idx ON agents (status);")
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op.execute("CREATE INDEX agents_last_seen_idx ON agents (last_seen_at);")
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op.execute(
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"""
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CREATE TABLE checks (
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agent_id TEXT NOT NULL REFERENCES agents(agent_id) ON DELETE CASCADE,
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check_id TEXT NOT NULL,
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status TEXT NOT NULL CHECK (status IN ('ok','warning','critical','unknown')),
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exit_code INTEGER NOT NULL,
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last_observed_at TIMESTAMPTZ NOT NULL,
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last_event_id UUID NOT NULL,
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incident_key TEXT NOT NULL,
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PRIMARY KEY (agent_id, check_id)
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);
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"""
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)
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op.execute("CREATE INDEX checks_status_idx ON checks (status);")
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op.execute(
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"""
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CREATE TABLE events (
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event_id UUID PRIMARY KEY,
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agent_id TEXT NOT NULL,
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check_id TEXT NOT NULL,
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observed_at TIMESTAMPTZ NOT NULL,
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received_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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status TEXT NOT NULL CHECK (status IN ('ok','warning','critical','unknown')),
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exit_code INTEGER NOT NULL,
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duration_ms INTEGER NOT NULL CHECK (duration_ms >= 0),
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output TEXT,
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output_truncated BOOLEAN NOT NULL DEFAULT FALSE,
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notifications_enabled BOOLEAN NOT NULL DEFAULT TRUE,
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incident_key TEXT NOT NULL
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);
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"""
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)
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op.execute(
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"CREATE INDEX events_agent_check_observed_idx ON events (agent_id, check_id, observed_at DESC);"
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)
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op.execute("CREATE INDEX events_observed_at_idx ON events (observed_at DESC);")
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op.execute(
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"""
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CREATE TABLE incidents (
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id UUID PRIMARY KEY,
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incident_key TEXT NOT NULL,
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agent_id TEXT NOT NULL,
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check_id TEXT NOT NULL,
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state TEXT NOT NULL CHECK (state IN ('open','resolved')),
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severity TEXT NOT NULL CHECK (severity IN ('warning','critical','unknown')),
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opened_at TIMESTAMPTZ NOT NULL,
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resolved_at TIMESTAMPTZ,
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summary TEXT,
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last_event_id UUID NOT NULL
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);
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"""
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)
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op.execute(
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"CREATE UNIQUE INDEX incidents_open_key_idx ON incidents (incident_key) WHERE state = 'open';"
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)
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op.execute("CREATE INDEX incidents_state_opened_idx ON incidents (state, opened_at DESC);")
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op.execute(
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"""
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CREATE TABLE notification_outbox (
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id UUID PRIMARY KEY,
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incident_id UUID NOT NULL REFERENCES incidents(id) ON DELETE CASCADE,
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notifier TEXT NOT NULL,
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event_type TEXT NOT NULL CHECK (event_type IN ('firing','resolved')),
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state TEXT NOT NULL CHECK (state IN ('pending','sending','sent','retry','failed','discarded')),
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attempts INTEGER NOT NULL DEFAULT 0,
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next_attempt_at TIMESTAMPTZ,
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last_error TEXT,
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payload JSONB NOT NULL,
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created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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"""
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)
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op.execute(
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"CREATE INDEX outbox_pending_idx ON notification_outbox (state, next_attempt_at) WHERE state IN ('pending','retry');"
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)
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def downgrade() -> None:
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op.execute("DROP TABLE IF EXISTS notification_outbox CASCADE;")
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op.execute("DROP TABLE IF EXISTS incidents CASCADE;")
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op.execute("DROP TABLE IF EXISTS events CASCADE;")
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op.execute("DROP TABLE IF EXISTS checks CASCADE;")
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op.execute("DROP TABLE IF EXISTS agents CASCADE;")
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