portal-ng pods run under root user

- switch base image from openresty to nginx-unprivileged
- remove custom lua plugin code
- dynamically determine dns resolver ip during container startup

Issue-ID: PORTALNG-67
Change-Id: I23fb5e684dbb98a326afb00911a1f5ae78e2536d
Signed-off-by: Fiete Ostkamp <Fiete.Ostkamp@telekom.de>

1 files changed, 0 insertions, 125 deletions

diff --git a/server/resty/session/storage/shm.lua b/server/resty/session/storage/shm.lua
deleted file mode 100644
index 6f81435..0000000
--- a/server/resty/session/storage/shm.lua
+++ /dev/null
@@ -1,125 +0,0 @@
-local lock         = require "resty.lock"
-
-local setmetatable = setmetatable
-local tonumber     = tonumber
-local concat       = table.concat
-local var          = ngx.var
-local shared       = ngx.shared
-
-local function enabled(value)
-    if value == nil then return nil end
-    return value == true or (value == "1" or value == "true" or value == "on")
-end
-
-local function ifnil(value, default)
-    if value == nil then
-        return default
-    end
-
-    return enabled(value)
-end
-
-local defaults   = {
-    store        = var.session_shm_store                       or "sessions",
-    uselocking   = enabled(var.session_shm_uselocking          or true),
-    lock         = {
-        exptime  = tonumber(var.session_shm_lock_exptime,  10) or 30,
-        timeout  = tonumber(var.session_shm_lock_timeout,  10) or 5,
-        step     = tonumber(var.session_shm_lock_step,     10) or 0.001,
-        ratio    = tonumber(var.session_shm_lock_ratio,    10) or 2,
-        max_step = tonumber(var.session_shm_lock_max_step, 10) or 0.5,
-    }
-}
-
-local storage = {}
-
-storage.__index = storage
-
-function storage.new(session)
-    local config = session.shm            or defaults
-    local store  = config.store           or defaults.store
-    local locking = ifnil(config.uselocking, defaults.uselocking)
-
-    local self = {
-        store      = shared[store],
-        uselocking = locking,
-    }
-
-    if locking then
-        local lock_opts = config.lock                      or defaults.lock
-        local opts      = {
-            exptime     = tonumber(lock_opts.exptime,  10) or defaults.exptime,
-            timeout     = tonumber(lock_opts.timeout,  10) or defaults.timeout,
-            step        = tonumber(lock_opts.step,     10) or defaults.step,
-            ratio       = tonumber(lock_opts.ratio,    10) or defaults.ratio,
-            max_step    = tonumber(lock_opts.max_step, 10) or defaults.max_step,
-        }
-        self.lock = lock:new(store, opts)
-    end
-
-    return setmetatable(self, storage)
-end
-
-function storage:open(id, keep_lock)
-    if self.uselocking then
-        local ok, err = self.lock:lock(concat{ id, ".lock" })
-        if not ok then
-            return nil, err
-        end
-    end
-
-    local data, err = self.store:get(id)
-
-    if self.uselocking and (err or not data or not keep_lock) then
-        self.lock:unlock()
-    end
-
-    return data, err
-end
-
-function storage:start(id)
-    if self.uselocking then
-        return self.lock:lock(concat{ id, ".lock" })
-    end
-
-    return true
-end
-
-function storage:save(id, ttl, data, close)
-    local ok, err = self.store:set(id, data, ttl)
-    if close and self.uselocking then
-        self.lock:unlock()
-    end
-
-    return ok, err
-end
-
-function storage:close()
-    if self.uselocking then
-        self.lock:unlock()
-    end
-
-    return true
-end
-
-function storage:destroy(id)
-    self.store:delete(id)
-
-    if self.uselocking then
-        self.lock:unlock()
-    end
-
-    return true
-end
-
-function storage:ttl(id, lifetime, close)
-    local ok, err = self.store:expire(id, lifetime)
-
-    if close and self.uselocking then
-        self.lock:unlock()
-    end
-
-    return ok, err
-end
-
-return storage