Class: E2B::Template

Inherits:
Object
  • Object
show all
Defined in:
lib/e2b/template.rb

Constant Summary collapse

DEFAULT_BASE_IMAGE = 
"e2bdev/base"
false
BASE_STEP_NAME = 
"base"
FINALIZE_STEP_NAME = 
"finalize"

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file_context_path: nil, file_ignore_patterns: []) ⇒ Template

Returns a new instance of Template.



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# File 'lib/e2b/template.rb', line 433

def initialize(file_context_path: nil, file_ignore_patterns: [])
  @file_context_path = (file_context_path || default_file_context_path).to_s
  @file_ignore_patterns = Array(file_ignore_patterns)
  @base_image = DEFAULT_BASE_IMAGE
  @base_template = nil
  @registry_config = nil
  @start_cmd = nil
  @ready_cmd = nil
  @force = false
  @force_next_layer = false
  @instructions = []
  @base_source_location = capture_source_location
  @finalization_source_location = nil
end

Class Method Details

.alias_exists(alias_name, api_key: nil, access_token: nil, domain: nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 31

def alias_exists(alias_name, api_key: nil, access_token: nil, domain: nil)
  credentials = resolve_credentials(api_key: api_key, access_token: access_token)
  http_client = build_http_client(**credentials, domain: resolve_domain(domain))
  http_client.get("/templates/aliases/#{escape_path_segment(alias_name)}")
  true
rescue E2B::NotFoundError
  false
rescue E2B::AuthenticationError => e
  return true if e.status_code == 403

  raise
end

.assign_tags(target_name, tags, api_key: nil, access_token: nil, domain: nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 44

def assign_tags(target_name, tags, api_key: nil, access_token: nil, domain: nil)
  credentials = resolve_credentials(api_key: api_key, access_token: access_token)
  http_client = build_http_client(**credentials, domain: resolve_domain(domain))
  response = http_client.post("/templates/tags", body: {
    target: target_name,
    tags: normalize_tags(tags)
  })

  Models::TemplateTagInfo.from_hash(response)
end

.build(template, name: nil, alias_name: nil, tags: nil, cpu_count: 2, memory_mb: 1024, skip_cache: false, on_build_logs: nil, api_key: nil, access_token: nil, domain: nil, **opts) ⇒ Object 



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# File 'lib/e2b/template.rb', line 137

def build(template, name: nil, alias_name: nil, tags: nil, cpu_count: 2, memory_mb: 1024, skip_cache: false,
          on_build_logs: nil, api_key: nil, access_token: nil, domain: nil, **opts)
  on_build_logs&.call(Models::TemplateLogEntryStart.new(timestamp: Time.now, message: "Build started"))

  build_info = build_in_background(
    template,
    name: name,
    alias_name: alias_name || opts[:alias] || opts["alias"],
    tags: tags,
    cpu_count: cpu_count,
    memory_mb: memory_mb,
    skip_cache: skip_cache,
    on_build_logs: on_build_logs,
    api_key: api_key,
    access_token: access_token,
    domain: domain
  )

  on_build_logs&.call(log_entry("Waiting for logs..."))

  wait_for_build_finish(
    build_info,
    on_build_logs: on_build_logs,
    api_key: api_key,
    access_token: access_token,
    domain: domain
  )

  build_info
ensure
  on_build_logs&.call(Models::TemplateLogEntryEnd.new(timestamp: Time.now, message: "Build finished"))
end

.build_in_background(template, name: nil, alias_name: nil, tags: nil, cpu_count: 2, memory_mb: 1024, skip_cache: false, on_build_logs: nil, api_key: nil, access_token: nil, domain: nil, **opts) ⇒ Object 



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# File 'lib/e2b/template.rb', line 170

def build_in_background(template, name: nil, alias_name: nil, tags: nil, cpu_count: 2, memory_mb: 1024,
                        skip_cache: false, on_build_logs: nil, api_key: nil, access_token: nil, domain: nil, **opts)
  alias_name ||= opts[:alias] || opts["alias"]
  resolved_name = normalize_build_name(name: name, alias_name: alias_name)
  template.send(:force_build!) if skip_cache

  credentials = resolve_credentials(api_key: api_key, access_token: access_token)
  http_client = build_http_client(**credentials, domain: resolve_domain(domain))

  tags_message = Array(tags).any? ? " with tags #{Array(tags).join(', ')}" : ""
  on_build_logs&.call(log_entry("Requesting build for template: #{resolved_name}#{tags_message}"))

  create_response = http_client.post("/v3/templates", body: {
    name: resolved_name,
    tags: tags,
    cpuCount: cpu_count,
    memoryMB: memory_mb
  })

  build_info = Models::BuildInfo.new(
    alias_name: resolved_name,
    name: resolved_name,
    tags: create_response["tags"] || create_response[:tags] || [],
    template_id: create_response["templateID"] || create_response[:templateID],
    build_id: create_response["buildID"] || create_response[:buildID],
    build_step_origins: template.send(:build_step_origins)
  )

  on_build_logs&.call(
    log_entry("Template created with ID: #{build_info.template_id}, Build ID: #{build_info.build_id}")
  )

  instructions = template.send(:instructions_with_hash_metadata)
  upload_copy_instructions(
    http_client,
    template,
    build_info,
    instructions,
    on_build_logs: on_build_logs
  )

  on_build_logs&.call(log_entry("All file uploads completed"))
  on_build_logs&.call(log_entry("Starting building..."))

  http_client.post(
    "/v2/templates/#{escape_path_segment(build_info.template_id)}/builds/#{escape_path_segment(build_info.build_id)}",
    body: template.send(:build_payload, instructions)
  )

  build_info
end

.exists(name, api_key: nil, access_token: nil, domain: nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 27

def exists(name, api_key: nil, access_token: nil, domain: nil)
  alias_exists(name, api_key: api_key, access_token: access_token, domain: domain)
end

.get_build_status(build_info = nil, logs_offset: nil, api_key: nil, access_token: nil, domain: nil, template_id: nil, build_id: nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 73

def get_build_status(build_info = nil, logs_offset: nil, api_key: nil, access_token: nil, domain: nil,
                     template_id: nil, build_id: nil)
  resolved_template_id, resolved_build_id = extract_build_identifiers(
    build_info,
    template_id: template_id,
    build_id: build_id,
    build_step_origins: nil
  )

  credentials = resolve_credentials(api_key: api_key, access_token: access_token)
  http_client = build_http_client(**credentials, domain: resolve_domain(domain))
  params = {}
  params[:logsOffset] = logs_offset unless logs_offset.nil?

  response = http_client.get(
    "/templates/#{escape_path_segment(resolved_template_id)}/builds/#{escape_path_segment(resolved_build_id)}/status",
    params: params
  )

  Models::TemplateBuildStatusResponse.from_hash(response)
end

.get_tags(template_id, api_key: nil, access_token: nil, domain: nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 65

def get_tags(template_id, api_key: nil, access_token: nil, domain: nil)
  credentials = resolve_credentials(api_key: api_key, access_token: access_token)
  http_client = build_http_client(**credentials, domain: resolve_domain(domain))
  response = http_client.get("/templates/#{escape_path_segment(template_id)}/tags")

  Array(response).map { |item| Models::TemplateTag.from_hash(item) }
end

.remove_tags(name, tags, api_key: nil, access_token: nil, domain: nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 55

def remove_tags(name, tags, api_key: nil, access_token: nil, domain: nil)
  credentials = resolve_credentials(api_key: api_key, access_token: access_token)
  http_client = build_http_client(**credentials, domain: resolve_domain(domain))
  http_client.delete("/templates/tags", body: {
    name: name,
    tags: normalize_tags(tags)
  })
  nil
end

.to_dockerfile(template) ⇒ Object 



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# File 'lib/e2b/template.rb', line 23

def to_dockerfile(template)
  template.to_dockerfile
end

.to_json(template, compute_hashes: true) ⇒ Object 



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# File 'lib/e2b/template.rb', line 19

def to_json(template, compute_hashes: true)
  template.to_json(compute_hashes: compute_hashes)
end

.wait_for_build_finish(build_info = nil, logs_offset: 0, on_build_logs: nil, logs_refresh_frequency: 0.2, api_key: nil, access_token: nil, domain: nil, template_id: nil, build_id: nil, build_step_origins: nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 95

def wait_for_build_finish(build_info = nil, logs_offset: 0, on_build_logs: nil, logs_refresh_frequency: 0.2,
                          api_key: nil, access_token: nil, domain: nil, template_id: nil, build_id: nil,
                          build_step_origins: nil)
  resolved_template_id, resolved_build_id, resolved_build_step_origins = extract_build_identifiers(
    build_info,
    template_id: template_id,
    build_id: build_id,
    build_step_origins: build_step_origins
  )
  current_logs_offset = logs_offset

  loop do
    status = get_build_status(
      nil,
      logs_offset: current_logs_offset,
      api_key: api_key,
      access_token: access_token,
      domain: domain,
      template_id: resolved_template_id,
      build_id: resolved_build_id
    )

    current_logs_offset += status.log_entries.length
    status.log_entries.each { |entry| on_build_logs.call(entry) } if on_build_logs

    case status.status
    when "building", "waiting"
      sleep_for_build_poll(logs_refresh_frequency)
    when "ready"
      return status
    when "error"
      raise build_error(
        status.reason&.message || "Unknown build error occurred.",
        step: status.reason&.step,
        source_location: build_step_source_location(status.reason&.step, resolved_build_step_origins)
      )
    else
      raise build_error("Unknown build status: #{status.status}")
    end
  end
end

Instance Method Details

#add_mcp_server(servers) ⇒ Object 



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# File 'lib/e2b/template.rb', line 672

def add_mcp_server(servers)
  unless @base_template == "mcp-gateway"
    raise build_error(
      "MCP servers can only be added to mcp-gateway template",
      source_location: capture_source_location
    )
  end

  server_list = Array(servers).map(&:to_s)
  run_cmd("mcp-gateway pull #{server_list.join(' ')}", user: "root")
end

#apt_install(packages, no_install_recommends: false) ⇒ Object 



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# File 'lib/e2b/template.rb', line 660

def apt_install(packages, no_install_recommends: false)
  package_list = Array(packages).map(&:to_s)
  install_flags = no_install_recommends ? "--no-install-recommends " : ""
  run_cmd(
    [
      "apt-get update",
      "DEBIAN_FRONTEND=noninteractive DEBCONF_NOWARNINGS=yes apt-get install -y #{install_flags}#{package_list.join(' ')}"
    ],
    user: "root"
  )
end

#beta_dev_container_prebuild(devcontainer_directory) ⇒ Object 



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# File 'lib/e2b/template.rb', line 695

def beta_dev_container_prebuild(devcontainer_directory)
  ensure_devcontainer_template!
  run_cmd("devcontainer build --workspace-folder #{devcontainer_directory}", user: "root")
end

#beta_set_dev_container_start(devcontainer_directory) ⇒ Object Also known as: beta_set_devcontainer_start 



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# File 'lib/e2b/template.rb', line 700

def beta_set_dev_container_start(devcontainer_directory)
  ensure_devcontainer_template!
  set_start_cmd(
    "sudo devcontainer up --workspace-folder #{devcontainer_directory} && sudo /prepare-exec.sh #{devcontainer_directory} | sudo tee /devcontainer.sh > /dev/null && sudo chmod +x /devcontainer.sh && sudo touch /devcontainer.up",
    E2B.wait_for_file("/devcontainer.up")
  )
end

#bun_install(packages = nil, g: false, dev: false) ⇒ Object 



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# File 'lib/e2b/template.rb', line 651

def bun_install(packages = nil, g: false, dev: false)
  package_list = packages.nil? ? nil : Array(packages).map(&:to_s)
  args = ["bun", "install"]
  args << "-g" if g
  args << "--dev" if dev
  args.concat(package_list) if package_list
  run_cmd(args.join(" "), user: g ? "root" : nil)
end

#copy(src, dest, force_upload: nil, user: nil, mode: nil, resolve_symlinks: nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 538

def copy(src, dest, force_upload: nil, user: nil, mode: nil, resolve_symlinks: nil)
  source_location = capture_source_location

  Array(src).each do |source|
    source_path = source.to_s
    validate_relative_path!(source_path, source_location: source_location)

    @instructions << {
      type: "COPY",
      args: [
        source_path,
        dest.to_s,
        user || "",
        mode ? format("%04o", mode) : ""
      ],
      force: !!force_upload || @force_next_layer,
      forceUpload: force_upload,
      resolveSymlinks: resolve_symlinks.nil? ? DEFAULT_RESOLVE_SYMLINKS : resolve_symlinks,
      sourceLocation: source_location
    }
  end

  self
end

#copy_items(items) ⇒ Object 



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# File 'lib/e2b/template.rb', line 563

def copy_items(items)
  items.each do |item|
    copy(
      copy_item_value(item, :src),
      copy_item_value(item, :dest),
      force_upload: copy_item_value(item, :forceUpload, required: false),
      user: copy_item_value(item, :user, required: false),
      mode: copy_item_value(item, :mode, required: false),
      resolve_symlinks: copy_item_value(item, :resolveSymlinks, required: false)
    )
  end

  self
end

#from_aws_registry(image, access_key_id:, secret_access_key:, region:) ⇒ Object 



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# File 'lib/e2b/template.rb', line 487

def from_aws_registry(image, access_key_id:, secret_access_key:, region:)
  @base_image = image
  @base_template = nil
  @registry_config = {
    type: "aws",
    awsAccessKeyId: access_key_id,
    awsSecretAccessKey: secret_access_key,
    awsRegion: region
  }
  @force = true if @force_next_layer
  @base_source_location = capture_source_location
  self
end

#from_base_image ⇒ Object 



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# File 'lib/e2b/template.rb', line 468

def from_base_image
  from_image(DEFAULT_BASE_IMAGE)
end

#from_bun_image(variant = "latest") ⇒ Object 



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# File 'lib/e2b/template.rb', line 464

def from_bun_image(variant = "latest")
  from_image("oven/bun:#{variant}")
end

#from_debian_image(variant = "stable") ⇒ Object 



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# File 'lib/e2b/template.rb', line 448

def from_debian_image(variant = "stable")
  from_image("debian:#{variant}")
end

#from_dockerfile(dockerfile_content_or_path) ⇒ Object 



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# File 'lib/e2b/template.rb', line 513

def from_dockerfile(dockerfile_content_or_path)
  @base_template = nil
  @registry_config = nil
  @base_image = E2B::DockerfileParser.parse(dockerfile_content_or_path, self)
  @force = true if @force_next_layer
  @base_source_location = capture_source_location
  self
rescue TemplateError => e
  raise template_error(
    e.message,
    source_location: capture_source_location,
    status_code: e.status_code,
    headers: e.headers
  )
end

#from_gcp_registry(image, service_account_json:) ⇒ Object 



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# File 'lib/e2b/template.rb', line 501

def from_gcp_registry(image, service_account_json:)
  @base_image = image
  @base_template = nil
  @registry_config = {
    type: "gcp",
    serviceAccountJson: ()
  }
  @force = true if @force_next_layer
  @base_source_location = capture_source_location
  self
end

#from_image(image, username: nil, password: nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 472

def from_image(image, username: nil, password: nil)
  @base_image = image
  @base_template = nil
  @registry_config = if username && password
                       {
                         type: "registry",
                         username: username,
                         password: password
                       }
                     end
  @force = true if @force_next_layer
  @base_source_location = capture_source_location
  self
end

#from_node_image(variant = "lts") ⇒ Object 



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# File 'lib/e2b/template.rb', line 460

def from_node_image(variant = "lts")
  from_image("node:#{variant}")
end

#from_python_image(version = "3") ⇒ Object 



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# File 'lib/e2b/template.rb', line 456

def from_python_image(version = "3")
  from_image("python:#{version}")
end

#from_template(template) ⇒ Object 



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# File 'lib/e2b/template.rb', line 529

def from_template(template)
  @base_template = template
  @base_image = nil
  @registry_config = nil
  @force = true if @force_next_layer
  @base_source_location = capture_source_location
  self
end

#from_ubuntu_image(variant = "latest") ⇒ Object 



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# File 'lib/e2b/template.rb', line 452

def from_ubuntu_image(variant = "latest")
  from_image("ubuntu:#{variant}")
end

#git_clone(url, path = nil, branch: nil, depth: nil, user: nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 684

def git_clone(url, path = nil, branch: nil, depth: nil, user: nil)
  args = ["git", "clone", url.to_s]
  if branch
    args << "--branch #{branch}"
    args << "--single-branch"
  end
  args << "--depth #{depth}" if depth
  args << path.to_s if path
  run_cmd(args.join(" "), user: user)
end

#make_dir(path, mode: nil, user: nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 726

def make_dir(path, mode: nil, user: nil)
  args = ["mkdir", "-p"]
  args << "-m #{format('%04o', mode)}" if mode
  args.concat(Array(path).map(&:to_s))
  run_cmd(args.join(" "), user: user)
end

#make_symlink(src, dest, user: nil, force: false) ⇒ Object 



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# File 'lib/e2b/template.rb', line 733

def make_symlink(src, dest, user: nil, force: false)
  args = ["ln", "-s"]
  args << "-f" if force
  args << src.to_s
  args << dest.to_s
  run_cmd(args.join(" "), user: user)
end

#npm_install(packages = nil, g: false, dev: false) ⇒ Object 



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# File 'lib/e2b/template.rb', line 642

def npm_install(packages = nil, g: false, dev: false)
  package_list = packages.nil? ? nil : Array(packages).map(&:to_s)
  args = ["npm", "install"]
  args << "-g" if g
  args << "--save-dev" if dev
  args.concat(package_list) if package_list
  run_cmd(args.join(" "), user: g ? "root" : nil)
end

#pip_install(packages = nil, g: true) ⇒ Object 



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# File 'lib/e2b/template.rb', line 634

def pip_install(packages = nil, g: true)
  package_list = packages.nil? ? nil : Array(packages).map(&:to_s)
  args = ["pip", "install"]
  args << "--user" unless g
  args.concat(package_list || ["."])
  run_cmd(args.join(" "), user: g ? "root" : nil)
end

#remove(path, force: false, recursive: false, user: nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 710

def remove(path, force: false, recursive: false, user: nil)
  args = ["rm"]
  args << "-r" if recursive
  args << "-f" if force
  args.concat(Array(path).map(&:to_s))
  run_cmd(args.join(" "), user: user)
end

#rename(src, dest, force: false, user: nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 718

def rename(src, dest, force: false, user: nil)
  args = ["mv"]
  args << "-f" if force
  args << src.to_s
  args << dest.to_s
  run_cmd(args.join(" "), user: user)
end

#run_cmd(cmd, user: nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 578

def run_cmd(cmd, user: nil)
  commands = Array(cmd).map(&:to_s)
  source_location = capture_source_location

  @instructions << {
    type: "RUN",
    args: [commands.join(" && "), user || ""],
    force: @force_next_layer,
    sourceLocation: source_location
  }

  self
end

#set_envs(envs) ⇒ Object 



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# File 'lib/e2b/template.rb', line 616

def set_envs(envs)
  return self if envs.empty?

  args = envs.each_with_object([]) do |(key, value), values|
    values << key.to_s
    values << value.to_s
  end
  source_location = capture_source_location

  @instructions << {
    type: "ENV",
    args: args,
    force: @force_next_layer,
    sourceLocation: source_location
  }
  self
end

#set_ready_cmd(ready_cmd) ⇒ Object 



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# File 'lib/e2b/template.rb', line 753

def set_ready_cmd(ready_cmd)
  @ready_cmd = normalize_ready_cmd(ready_cmd)
  @finalization_source_location = capture_source_location
  self
end

#set_start_cmd(start_cmd, ready_cmd = nil) ⇒ Object 



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# File 'lib/e2b/template.rb', line 746

def set_start_cmd(start_cmd, ready_cmd = nil)
  @start_cmd = start_cmd.to_s
  @ready_cmd = normalize_ready_cmd(ready_cmd) unless ready_cmd.nil?
  @finalization_source_location = capture_source_location
  self
end

#set_user(user) ⇒ Object 



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# File 'lib/e2b/template.rb', line 604

def set_user(user)
  source_location = capture_source_location

  @instructions << {
    type: "USER",
    args: [user.to_s],
    force: @force_next_layer,
    sourceLocation: source_location
  }
  self
end

#set_workdir(workdir) ⇒ Object 



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# File 'lib/e2b/template.rb', line 592

def set_workdir(workdir)
  source_location = capture_source_location

  @instructions << {
    type: "WORKDIR",
    args: [workdir.to_s],
    force: @force_next_layer,
    sourceLocation: source_location
  }
  self
end

#skip_cache ⇒ Object 



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# File 'lib/e2b/template.rb', line 741

def skip_cache
  @force_next_layer = true
  self
end

#to_dockerfile ⇒ Object 



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# File 'lib/e2b/template.rb', line 767

def to_dockerfile
  if @base_template
    raise template_error(
      "Cannot convert template built from another template to Dockerfile. Templates based on other templates can only be built using the E2B API.",
      source_location: capture_source_location
    )
  end

  raise template_error("No base image specified for template", source_location: capture_source_location) unless @base_image

  dockerfile = +"FROM #{@base_image}\n"
  @instructions.each do |instruction|
    case instruction[:type]
    when "RUN"
      dockerfile << "RUN #{instruction[:args][0]}\n"
    when "COPY"
      dockerfile << "COPY #{instruction[:args][0]} #{instruction[:args][1]}\n"
    when "ENV"
      values = instruction[:args].each_slice(2).map { |key, value| "#{key}=#{value}" }
      dockerfile << "ENV #{values.join(' ')}\n"
    else
      dockerfile << "#{instruction[:type]} #{instruction[:args].join(' ')}\n"
    end
  end
  dockerfile << "ENTRYPOINT #{@start_cmd}\n" if @start_cmd
  dockerfile
end

#to_h(compute_hashes: false) ⇒ Object 



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# File 'lib/e2b/template.rb', line 759

def to_h(compute_hashes: false)
  build_payload(compute_hashes ? instructions_with_hash_metadata : @instructions)
end

#to_json(compute_hashes: true) ⇒ Object 



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# File 'lib/e2b/template.rb', line 763

def to_json(compute_hashes: true)
  JSON.pretty_generate(to_h(compute_hashes: compute_hashes))
end