Add Dockerfile to simplify fatpack for environments without perl

Dockerfile

@@ -0,0 +1,12 @@
+FROM perl:5.20
+
+RUN apt-get -y update 
+RUN apt-get -y upgrade
+RUN cpanm Data::Compare
+
+COPY src/ /app/src
+COPY Makefile /app
+RUN mkdir /app/library
+WORKDIR /app
+
+CMD [ "make" ]

Makefile

@@ -1,9 +1,20 @@
-.PHONY: all
-
-all: ./library/copy.lua ./library/file.lua ./library/lineinfile.lua ./library/opkg.lua ./library/ping.lua ./library/slurp.lua ./library/stat.lua ./library/ubus.lua ./library/uci.lua
+.PHONY: all 
 
+APP_NAME=fatpacker
 WHITELIST=io,os,posix.,ubus
 FATPACKARGS=--whitelist $(WHITELIST) --truncate
 
+# LOCAL DEFAULT TASKS
+all: ./library/copy.lua ./library/file.lua ./library/lineinfile.lua ./library/opkg.lua ./library/ping.lua ./library/service.lua ./library/slurp.lua ./library/stat.lua ./library/ubus.lua ./library/uci.lua
+
 ./library/%.lua : ./src/%.lua ./src/*.lua
 	./src/fatpack.pl --input $^ --output $(dir $@) $(FATPACKARGS)
+
+# DOCKER TASKS
+# Build the container
+build: ## Build the container
+	docker build -t $(APP_NAME) .
+
+run: ## Run container 
+	docker run -i -t -v ${PWD}/library:/app/library --rm --name="$(APP_NAME)" $(APP_NAME)
+

README.md

@@ -20,16 +20,17 @@ this project was born.
 
 As the OpenWrt community seems to have a strange affection for lua, this
 repository currently implements the following modules:
-- [copy](https://docs.ansible.com/ansible/copy_module.html)
-- [file](https://docs.ansible.com/ansible/file_module.html)
-- [lineinfile](https://docs.ansible.com/ansible/lineinfile_module.html)
+- [copy](https://docs.ansible.com/ansible/latest/collections/ansible/builtin/copy_module.html)
+- [file](https://docs.ansible.com/ansible/latest/collections/ansible/builtin/file_module.html)
+- [lineinfile](https://docs.ansible.com/ansible/latest/collections/ansible/builtin/lineinfile_module.html)
 - opkg
-- [ping](https://docs.ansible.com/ansible/ping_module.html)
-- [stat](https://docs.ansible.com/ansible/stat_module.html)
+- [ping](https://docs.ansible.com/ansible/latest/collections/ansible/builtin/ping_module.html)
+- [service](https://docs.ansible.com/ansible/latest/collections/ansible/builtin/service_module.html)
+- [stat](https://docs.ansible.com/ansible/latest/collections/ansible/builtin/stat_module.html)
 - ubus
 - uci
 
-Copy, file, lineinfile, stat, ping and opkg are mostly straightforward ports of the
+Copy, file, lineinfile, stat, service, ping and opkg are mostly straightforward ports of the
 official python modules included in the Ansible v2.1.1.0 release. However, there
 were some simplifications made:
 - selinux file attributes are not supported
@@ -98,6 +99,7 @@ For the following modules, please refer to the upstream documentation
 - [lineinfile](https://docs.ansible.com/ansible/lineinfile_module.html)
 - [opkg](https://docs.ansible.com/ansible/opkg_module.html)
 - [ping](https://docs.ansible.com/ansible/ping_module.html)
+- [service](https://docs.ansible.com/ansible/service_module.html)
 - [stat](https://docs.ansible.com/ansible/stat_module.html)
 
 ## ubus module
@@ -232,6 +234,11 @@ An more complex example showing the usage of forcelist:
         - uci commit
 ```
 
+# Invoke
+```
+ansible-playbook playbook.yml
+```
+
 # Contributing
 
 Give me all your pullrequests :) If you find a bug in one of the provided modules

src/fileutils.lua

@@ -94,6 +94,16 @@ function FileUtil.islnk(path)
 	end
 end
 
+function FileUtil.isfile(path)
+	local pstat = stat.lstat(path)
+
+	if pstat then
+		return 0 ~= stat.S_ISREG(pstat['st_mode'])
+	else
+		return false
+	end
+end
+
 function FileUtil.stat(path)
 	return stat.stat(path)
 end

src/service.lua

@@ -0,0 +1,96 @@
+#!/usr/bin/lua
+
+local Ansible = require("ansible")
+local File = require("fileutils")
+
+function service_script(service)
+    return "/etc/init.d/" .. service
+end
+
+function service_exists(service)
+    return File.isfile(service_script(service))
+end
+
+function service_enabled(module, service)
+    local rc, out, err = service_command(module, service, "enabled")
+
+    return 0 == rc, out, err
+end
+
+function service_command(module, service, action)
+    return module:run_command(service_script(service) .. " " .. action)
+end
+
+function service_running(module, service)
+    if 0 == module:run_command("pgrep -P 1 " .. service) then
+        return true
+    end
+
+    return false
+end
+
+function main(arg)
+    local module = Ansible.new({
+        name = { required = true },
+        state = { choices = { "", "started", "stopped", "restarted", "reloaded" } },
+        enabled = { type = 'bool' },
+    })
+
+    module:parse(arg[1])
+
+    local p = module:get_params()
+
+    local service = p["name"]
+    local state = p["state"]
+    local enable = p["enabled"]
+
+    local changed = false
+    local msg = {}
+    local actions = {}
+
+    if (state == nil or state == "") and (enable == nil) then
+        module:fail_json({ msg = "at least one of 'state' and 'enabled' are required" })
+    end
+
+    if not service_exists(service) then
+        module:fail_json({ msg = string.format("service '%s' does not exist", service) })
+    end
+
+    if enable then
+        if not service_enabled(module, service) then
+            actions[#actions + 1] = "enable"
+        end
+    elseif enable == false then
+        if service_enabled(module, service) then
+            actions[#actions + 1] = "disable"
+        end
+    end
+
+    if state ~= nil then
+        local action = string.gsub(state, "p?ed$", "")
+
+        if not (("start" == action and service_running(module, service)) or ("stop" == action and not service_running(module, service))) then
+            actions[#actions + 1] = action
+        end
+    end
+
+    if #actions > 0 then
+        if not module:check_mode() then
+            for i = 1, #actions do
+                local rc, out, err = service_command(module, service, actions[i])
+
+                if rc ~= 0 then
+                    module:fail_json({ msg = string.format("service '%s' has failed to %s", service, actions[i]),
+                                       service = { rc = rc, out = out, err = err } })
+                end
+
+                msg[#msg + 1] = string.format("executed '%s' command", actions[i])
+            end
+        end
+        changed = true
+    end
+
+    module:exit_json({ changed = changed, msg = table.concat(msg, "; ") })
+end
+
+main(arg)