* fix(docker): make dev provisioner opt-in via compose profile
Gate the Kubernetes provisioner behind a Compose profile and have the
wrapper enable it only when config selects provisioner sandbox mode.
This lets the default Docker Compose stack start without kubeconfig.
Fixes#3232
* test(docker): render every compose profile in the env-file regression test
main added backend/tests/test_compose_default_bind_host.py, whose _render helper asserted that the dev provisioner still loads ../.env. `docker compose config` without a profile omits profile-gated services, so that assertion failed once the provisioner became opt-in.
Pass `--profile *` from the helper: the test is about an existing .env reaching every service, so it has to render the services a profile gates rather than only the ones `up` starts by default.
* docs(docker): restore script mode and localize direct Compose guidance
The dev provisioner is now opt-in, but the earlier edit also flipped scripts/docker.sh from 100755 to 100644 even though README.md still documents direct `./scripts/docker.sh` invocation. Restore the executable bit.
Also add the direct-Compose guidance to the translated READMEs so readers of README_zh.md, README_ja.md, and README_fr.md learn that `--profile provisioner` selects the Kubernetes mode and the default stack does not need Kubernetes.
---------
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
* fix(security): add DEER_FLOW_CREDENTIALS_KEY for at-rest credential encryption
There was no at-rest encryption key. ChannelCredentialCipher had no
production caller: the channel service, the scheduled-task notification
outbox and the channel-connections router all built
ChannelConnectionRepository without a cipher, so store_credentials refused
(RuntimeError) and get_credentials always returned None.
- New harness module deerflow.config.credentials_key: env-only
DEER_FLOW_CREDENTIALS_KEY (comma-separated Fernet keys; first encrypts,
all decrypt via MultiFernet), CredentialsCipher with encrypt_text /
decrypt_text / rotate_text, a fernet:v2: prefix with legacy fernet:v1:
values still readable, and get_credentials_cipher() as the process-wide
entry point. Malformed keys are refused without echoing key material.
Without the variable a single instance generates
{base_dir}/.credentials_key. Never derived from AUTH_JWT_SECRET.
- New deerflow.config.secret_file.read_or_create_secret_file: O_EXCL
create (0600) plus read-back with a bounded settle window, shared by
.credentials_key, .jwt_secret (fixes two replicas cold-starting on a
shared volume keeping different JWT secrets) and the managed-model key.
- ChannelCredentialCipher now builds on CredentialsCipher (same
constructors); the Gateway loads the cipher off the event loop at
startup when channel_connections is enabled and passes it to every
ChannelConnectionRepository. Undecryptable values stay "missing + warn".
- Startup gate: a malformed key stops startup in any topology; a declared
multi-instance deployment with channel_connections enabled and no key
is refused. Plain multi-worker shares the generated file and is allowed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* feat(deploy): generate and inject DEER_FLOW_CREDENTIALS_KEY in Helm, compose and deploy.sh
- Helm: the app Secret generates a Fernet key (randBytes 32 translated to
the urlsafe alphabet) and preserves it across upgrades via lookup like
AUTH_JWT_SECRET; the gateway reads it through an optional secretKeyRef
so a user-managed existingAppSecret without it still boots (the Gateway
gate refuses only multi-instance deployments that store credentials).
README, NOTES and values document backup, rotation and existingAppSecret.
- scripts/deploy.sh resolves the key shell -> .env -> persisted file ->
generated, persisting it as $DEER_FLOW_HOME/.credentials_key (0600,
noclobber/O_EXCL with read-back): the same file the Gateway generates in
its runtime home, so either side's key is the one both keep.
- Both compose files pass DEER_FLOW_CREDENTIALS_KEY=${...:-} to the gateway.
- .env.example entry with a generation hint; README and CHANGELOG notes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix(security): make abandoned secret-file replacement single-winner
A rename is last-writer-wins, so replicas that restart together and all
find the same abandoned empty secret file could each replace it and keep
a different value. The process that exclusively creates
<name>.replacing now owns the replacement, re-checks the file is still
empty, and publishes by renaming the claim over it; peers wait for that
value, bounded so a crashed replacer cannot block startup forever.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* docs(changelog): link DEER_FLOW_CREDENTIALS_KEY entries to #6611
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix(security): name the setting that turns off a credentials-key consumer
The multi-instance refusal ended with "or disable
channel_connections.enabled=true"; it now says "or set
channel_connections.enabled=false".
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix(security): never expose a secret file before its value is written
O_EXCL published the name before its content, so a creator that stalled
mid-write left an empty file a peer replaced after the settle window; the
resumed creator then returned a value nobody persisted, or deleted the
peer's valid file when its own write failed. Creators now write and sync
a private temporary file and hard-link it to the name, which fails if
the name exists; a failed creator only removes its own temporary file.
Filesystems without hard links publish through the same single-winner
<name>.replacing claim that replaces abandoned empty files, so creation
and replacement are serialized there.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix(models): recover an empty managed-model key when no catalog exists
An interrupted first save could leave an empty key file; every later save
then passed empty bytes to Fernet and the endpoint returned 503 until the
file was removed by hand. An empty key with no catalog encrypted nothing,
so it now goes through the secret-file recovery path; next to an existing
catalog it is still refused.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix(docker): pass the dotenv DEER_FLOW_CREDENTIALS_KEY through make docker-start
scripts/docker.sh runs Compose from docker/ without --env-file, so the dev
gateway's DEER_FLOW_CREDENTIALS_KEY=${DEER_FLOW_CREDENTIALS_KEY:-} entry
interpolated to empty and overrode the key the checkout .env supplied via
env_file. Export it from the dotenv like AUTH_TRUSTED_PROXIES.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
* fix(auth): key the compose login lockout by client, not by nginx
Failed logins are counted per client IP, and the Gateway honors X-Real-IP
only from a peer listed in AUTH_TRUSTED_PROXIES. The compose files never
set it, and every browser request reaches the Gateway from the nginx
container, so all logins shared nginx's address: five wrong passwords
from anyone locked every user out for five minutes.
AUTH_TRUSTED_PROXIES now also accepts hostnames, resolved off the event
loop and cached for 10 seconds (failed lookups included, and only when
X-Real-IP is present), and both compose files default it to the bundled
nginx service, whose address Docker assigns. nginx overwrites X-Real-IP
with $remote_addr on every Gateway route; a test pins that for the three
maintained configs.
* docs(changelog): reference #6519
* fix(auth): share one trusted-proxy lookup across concurrent cache misses
A burst of setup-status / login requests on an expired hostname entry
started one getaddrinfo per request while DNS was slow, occupying the
default executor that password verification also uses. The cache check
and an in-flight task registration now happen without a yield between
them; later callers join that task through asyncio.shield, so a cancelled
request cannot cancel the lookup the others joined, and the task caches
its own result.
The compose default keeps `:-` on purpose: every browser request arrives
through nginx, so an empty AUTH_TRUSTED_PROXIES would only bring back the
shared lockout. The compose comment and .env.example say so, and the
rendered-compose test now covers the explicitly empty value.
* fix(docker): keep a .env AUTH_TRUSTED_PROXIES under make docker-start
docker.sh start runs Compose from docker/ without --env-file, so the dev
compose file's ${AUTH_TRUSTED_PROXIES:-nginx} interpolated from the shell
only, and the resolved environment entry outranked the operator's value
loaded through env_file. Export it from .env alongside the proxy variables
(a shell export still wins), and strip a CRLF before the quotes.
---------
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
* fix(deploy): let make up start on a checkout without .env files
.env and frontend/.env are gitignored and make up does not create them,
but docker/docker-compose.yaml listed both as short-form env_file entries,
which Compose treats as required. On a fresh clone make up, make down and
make prod-logs all stopped with "env file .../.env not found" (exit 14)
before building or touching anything.
Mark the three entries optional with the long-form path/required syntax
the development compose file already uses. Compose loads them when they
exist and skips them otherwise; an unreadable or non-file .env still
fails. This needs Docker Compose 2.24+, the floor the README already
documents, and deploy.sh's startup-failure hint now names it for older
clients.
deploy.sh deliberately does not seed the files from the examples the way
docker.sh start does: .env.example carries placeholder API keys the
production Gateway would receive, and make config skips files that exist.
* docs(changelog): reference #6370
* test(deploy): gate Compose clients and cover make up
---------
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
* fix(docker): add 'make prod-logs' entry point and hint when dev logs are empty
`make up` starts the production stack (deploy.sh: project `deer-flow`,
docker/docker-compose.yaml) while `make docker-logs` tails the dev stack
(project `deer-flow-dev`, docker-compose-dev.yaml), so after `make up`
it printed nothing (#5529), and no make entry point showed production
logs at all.
- scripts/docker.sh logs gains `--prod`: targets the stack deploy.sh
started, passes --env-file ../.env when present, and exports the same
interpolation defaults deploy.sh exports before every compose call —
without them the production volume specs fail to parse on checkouts
without .env.
- dev-only `logs` with no running containers now prints a hint pointing
at `make prod-logs` instead of staying silent.
- Makefile gains `prod-logs`, listed under Docker Production Commands.
New tests cover production targeting and the empty-state hint; they are
red on unfixed main and green here. Verified live: with a deer-flow
redis running, `logs --prod --redis` streams its logs.
Fixes#5529
* fix(docker): append --env-file after compose detection rebuilds COMPOSE_CMD
compose_preflight() probes the Compose binary and rebuilds COMPOSE_CMD,
so an --env-file appended before it was silently dropped. Append it
after preflight instead, and drive the regression test through the real
detection path (stub Docker Compose version v5.3.1, not require_compose_version)
so the append cannot regress silently.
Reviewed-in: #5538
* fix(docker): allow aio DooD socket preflight on Windows Git Bash
* test(deploy): add regression tests for deploy.sh DooD socket preflight
* fix(docker): restrict Windows DooD socket bypass to default path
Limit the Windows socket bypass in docker.sh and deploy.sh to the default /var/run/docker.sock path, and add regression tests ensuring custom missing socket paths are rejected.
* test(docker): skip unreachable socket controls on hosts with live docker socket
Add @pytest.mark.skipif on Path('/var/run/docker.sock').is_socket() to prevent false test failures on daemon-live hosts.
Recipes and scripts ran sibling shell scripts bare (./scripts/x.sh), so
any checkout that lost the executable bit -- zip/tarball download,
core.fileMode=false, non-POSIX filesystem -- failed with:
make: ./scripts/docker.sh: Permission denied
make: *** [Makefile:181: docker-start] Error 127
The tracked modes are already 100755, so chmod cannot fix it. Name the
interpreter instead: the POSIX branch of RUN_SHELL_SCRIPT (renamed from
RUN_WITH_GIT_BASH) now expands to $(BASH) rather than nothing, and the
five script-to-script call sites are prefixed with bash.
Fixes#2903
Co-authored-by: zaoshangduziteng <309590849+zaoshangduziteng@users.noreply.github.com>
* fix(docker): create compose env files and keep Windows compose paths relative
Windows Docker reports a generic file-not-found when env_file targets are missing, or when compose paths are doubled. Make docker-start copy .env examples and invoke compose with filenames relative to docker/.
Co-authored-by: Cursor <cursoragent@cursor.com>
* fix(docker): make dev compose env files optional and repair test fixture
Address review feedback on #4956.
[P1] prepare_compose_env aborted before the mocked COMPOSE_CMD in
test_compose_commands_set_deer_flow_root_before_compose, because the
temp root had no compose file or .env examples. Seed them in the
fixture so the preflight reaches the mock.
[P2] .env is gitignored, so a fresh clone has none and a direct
`docker compose -f docker/docker-compose-dev.yaml up --build` aborts on
Windows before scripts/docker.sh can help. Mark the dev env_file entries
`required: false` so a missing .env is not fatal, and document that
direct Compose must be run from the repository root.
Co-authored-by: Cursor <cursoragent@cursor.com>
* fix(docker): declare Compose 2.24 floor and keep non-start commands read-only
Address the second review round on #4956.
- Document Compose >= 2.24 (CONTRIBUTING, README, compose header) and fail
early from make docker-start with an actionable message; probe both
`docker compose` and the hyphenated `docker-compose` binary.
- Document DEER_FLOW_ROOT for direct Compose callers (bash + PowerShell);
leave the variable without a $PWD fallback because PowerShell/cmd do not
export it.
- Split prepare_compose_env: compose_preflight is shared and read-only;
ensure_env_files runs only from start.
- Expand tests for version boundaries, hyphenated fallback, env-file
creation, and read-only stop/logs/restart behavior.
Co-authored-by: Cursor <cursoragent@cursor.com>
* fix(docker): reuse the probed Compose binary for wrapper operations
The version probe could accept a standalone docker-compose install while
COMPOSE_CMD stayed hardcoded to `docker compose`, so preflight passed and
start/logs/stop/restart then failed. Keep the selected executable in
COMPOSE_BIN (array), refresh COMPOSE_CMD from it in the current shell, and
extend the fallback test through an actual stop invocation.
Co-authored-by: Cursor <cursoragent@cursor.com>
---------
Co-authored-by: Cursor <cursoragent@cursor.com>
* feat: add redis stream bridge
* Potential fix for pull request finding
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
* fix(gateway): address redis stream bridge review
Redis was imported eagerly through deerflow.runtime and declared as a hard dependency, which made memory-only installs load redis.asyncio at startup and left the lazy factory import ineffective. Move redis behind an optional extra, remove the public eager re-export, and keep make_stream_bridge as the only runtime import path with an actionable install hint when the extra is missing.
Because Docker deployments now default the stream bridge to Redis via DEER_FLOW_STREAM_BRIDGE_REDIS_URL, install the redis extra explicitly in Docker/dev container flows and teach the local uv-extra detector to infer redis from both stream_bridge.type and the Redis URL env var. This keeps Docker working while preserving slim non-Docker installs.
Harden the Redis bridge by batching XREAD replay, replacing brittle ResponseError string matching with a single fallback to 0-0 for malformed Last-Event-ID values, documenting connection/retention/fail-hard behavior, and adding fake plus opt-in real Redis coverage for XADD/XREAD, replay, invalid IDs, and MAXLEN trimming.
* fix(config): bump config version for stream bridge
* fix redis stream bridge terminal handling
* fix: repair uv.lock, format redis.py, and align Dockerfile extras test
The uv.lock file was missing a closing bracket for the redis extras
section, redis.py had a formatting issue caught by ruff, and the
Dockerfile extras test did not account for the hardcoded --extra redis
flag.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
* fix(security): mount host Docker socket only in aio (DooD) sandbox mode
The default Compose stack mounted /var/run/docker.sock read-write into the
root gateway container in every sandbox mode, including the default `local`
mode that never uses it -- an unnecessary host-escape surface (DooD =
root-equivalent host control). deploy.sh already gated the socket *check* on
sandbox_mode != local, but the Compose files mounted it unconditionally.
Move the socket mount to an opt-in docker/docker-compose.dood.yaml overlay
that deploy.sh / docker.sh append only when detect_sandbox_mode() returns
`aio`. Default (local) and provisioner/Kubernetes modes no longer expose the
host daemon. Tighten the socket existence check from != local to == aio.
Document the DooD threat model in SECURITY.md.
Reported by @greatmengqi.
* refactor(docker): address review on socket-hardening PR
- docker.sh: use absolute path for the dood overlay (match deploy.sh, drop cwd dependency)
- deploy.sh: drop now-dead DEER_FLOW_DOCKER_SOCKET exports in down/build paths
- docker-compose.yaml: fix stale header comment to point at the overlay
Addresses codex + reviewer feedback on #3517.
---------
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
* fix(web_fetch): support proxy for Jina reader in restricted networks
The web_fetch tool built a bare httpx.AsyncClient() with no proxy
awareness, so users behind a corporate proxy / in Docker / WSL could
not reach https://r.jina.ai and web_fetch timed out.
- Add optional `proxy` / `trust_env` params to JinaClient.crawl and
wire them from the `web_fetch` tool config (with type coercion for
YAML string values).
- Pass internal service hostnames through NO_PROXY in both compose
files so proxy env inherited via env_file does not break in-cluster
calls (gateway/provisioner/etc).
- Load proxy vars from .env into the shell in scripts/docker.sh so the
NO_PROXY interpolation can merge user-provided values on `make` path.
- Document proxy/trust_env options in config.example.yaml.
Closes#3418
* Potential fix for pull request finding
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
---------
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
- Updated documentation and comments to reflect the transition from LangGraph Server to Gateway.
- Changed default URLs in ChannelManager and tests to point to Gateway.
- Removed references to LangGraph Server in deployment scripts and configurations.
- Updated Nginx configuration to route API traffic to Gateway.
- Adjusted frontend configurations to utilize Gateway's API.
- Removed LangGraph service from Docker Compose files, consolidating services under Gateway.
- Added regression tests to ensure Gateway integration works as expected.
Co-authored-by: Copilot <copilot@github.com>
* fix(scripts): handle docker-init failures gracefully for private registry
The make docker-init command was failing on Linux environments when users
could not access the private Volces container registry. This commonly
occurs in corporate intranet environments with proxies or for users
without registry credentials.
Changes:
- Detect sandbox mode from config.yaml before attempting image pull
- Skip image pull entirely for local sandbox mode (default)
- Gracefully handle pull failures with informative messages
- Update setup-sandbox Makefile target with same error handling
Fixes#1168
* Apply suggestions from code review
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
---------
Co-authored-by: BillionClaw <billionclaw@users.noreply.github.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
docker.sh restart() tells users to run `make docker-dev-logs`, but
this target does not exist. The correct target is `make docker-logs`.
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
* refactor: extract shared utils to break harness→app cross-layer imports
Move _validate_skill_frontmatter to src/skills/validation.py and
CONVERTIBLE_EXTENSIONS + convert_file_to_markdown to src/utils/file_conversion.py.
This eliminates the two reverse dependencies from client.py (harness layer)
into gateway/routers/ (app layer), preparing for the harness/app package split.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* refactor: split backend/src into harness (deerflow.*) and app (app.*)
Physically split the monolithic backend/src/ package into two layers:
- **Harness** (`packages/harness/deerflow/`): publishable agent framework
package with import prefix `deerflow.*`. Contains agents, sandbox, tools,
models, MCP, skills, config, and all core infrastructure.
- **App** (`app/`): unpublished application code with import prefix `app.*`.
Contains gateway (FastAPI REST API) and channels (IM integrations).
Key changes:
- Move 13 harness modules to packages/harness/deerflow/ via git mv
- Move gateway + channels to app/ via git mv
- Rename all imports: src.* → deerflow.* (harness) / app.* (app layer)
- Set up uv workspace with deerflow-harness as workspace member
- Update langgraph.json, config.example.yaml, all scripts, Docker files
- Add build-system (hatchling) to harness pyproject.toml
- Add PYTHONPATH=. to gateway startup commands for app.* resolution
- Update ruff.toml with known-first-party for import sorting
- Update all documentation to reflect new directory structure
Boundary rule enforced: harness code never imports from app.
All 429 tests pass. Lint clean.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* chore: add harness→app boundary check test and update docs
Add test_harness_boundary.py that scans all Python files in
packages/harness/deerflow/ and fails if any `from app.*` or
`import app.*` statement is found. This enforces the architectural
rule that the harness layer never depends on the app layer.
Update CLAUDE.md to document the harness/app split architecture,
import conventions, and the boundary enforcement test.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* feat: add config versioning with auto-upgrade on startup
When config.example.yaml schema changes, developers' local config.yaml
files can silently become outdated. This adds a config_version field and
auto-upgrade mechanism so breaking changes (like src.* → deerflow.*
renames) are applied automatically before services start.
- Add config_version: 1 to config.example.yaml
- Add startup version check warning in AppConfig.from_file()
- Add scripts/config-upgrade.sh with migration registry for value replacements
- Add `make config-upgrade` target
- Auto-run config-upgrade in serve.sh and start-daemon.sh before starting services
- Add config error hints in service failure messages
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix comments
* fix: update src.* import in test_sandbox_tools_security to deerflow.*
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: handle empty config and search parent dirs for config.example.yaml
Address Copilot review comments on PR #1131:
- Guard against yaml.safe_load() returning None for empty config files
- Search parent directories for config.example.yaml instead of only
looking next to config.yaml, fixing detection in common setups
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: correct skills root path depth and config_version type coercion
- loader.py: fix get_skills_root_path() to use 5 parent levels (was 3)
after harness split, file lives at packages/harness/deerflow/skills/
so parent×3 resolved to backend/packages/harness/ instead of backend/
- app_config.py: coerce config_version to int() before comparison in
_check_config_version() to prevent TypeError when YAML stores value
as string (e.g. config_version: "1")
- tests: add regression tests for both fixes
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix: update test imports from src.* to deerflow.*/app.* after harness refactor
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
* Refactor sandbox state management and improve Docker integration
- Removed FileSandboxStateStore and SandboxStateStore classes for a cleaner architecture.
- Enhanced LocalContainerBackend to handle port allocation retries and introduced environment variable support for sandbox host configuration.
- Updated Paths class to include host_base_dir for Docker volume mounts and ensured proper permissions for sandbox directories.
- Modified ExtensionsConfig to improve error handling when loading configuration files and adjusted environment variable resolution.
- Updated sandbox configuration to include a replicas option for managing concurrent sandbox containers.
- Improved logging and context management in SandboxMiddleware for better sandbox lifecycle handling.
- Enhanced network port allocation logic to bind to 0.0.0.0 for compatibility with Docker.
- Updated Docker Compose files to ensure proper volume management and environment variable configuration.
- Created scripts to ensure necessary configuration files are present before starting services.
- Cleaned up unused MCP server configurations in extensions_config.example.json.
* Address Copilot review suggestions from PR #1068 (#9)
---------
Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com>
* Adds Kubernetes sandbox provisioner support
* Improves Docker dev setup by standardizing host paths
Replaces hardcoded host paths with a configurable root directory,
making the development environment more portable and easier to use
across different machines. Automatically sets the root path if not
already defined, reducing manual setup steps.
* feat: adds docker-based dev environment
* docs: updates Docker command help
* fix local dev
* feat(sandbox): add Kubernetes-based sandbox provider for multi-instance support
* fix: skills path in k8s
* feat: add example config for k8s sandbox
* fix: docker config
* fix: load skills on docker dev
* feat: support sandbox execution to Kubernetes Deployment model
* chore: rename web service name